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  1. Selected images of Leon Knopoff, family, and friends

    Photos selected and scanned by Jo Knopoff


    If you are pictured or named in a photo but would prefer not to be, please let us know.

  2. Ray Singer, later Ray Knopoff, Leon's mother

  3. Max and Ray Knopoff,
    wedding photo, 1921

  4. In garden, Boyle Heights (Los Angeles), Leon, age two, 1927

  5. Leon and his parents
    Max and Ray Knopoff

  6. Leon, high school graduate at age 15, 1941

  7. Leon and his beloved Mama, February 1946, on the day he got his MS from Caltech

  8. Leon and his beloved Papa, February 1946, on the day he got his MS from Caltech

  9. Near top of Mt. Baldy, 1947

  10. Jo and Leon, April 9, 1961

  11. Jo and Leon, April 9, 1961

  12. Leaving after the wedding, April 9, 1961

  13. With first child Katie, 7 months old, February 1964

  14. Hiking in local San Gabriel Mountains, June 1964

  15. On the summit of Großer Rettenstein, Austria, August 1964

  16. Katie on Leon's back, Geneva, Switzerland, August 1964

  17. Katie on Leon's back, Switzerland, August 1964

  18. With second child Rachel, 2½ months old, May 1965

  19. With Katie, December 1966

  20. Leon, 41 years old, December 1966

  21. With Rachel and Kaite, December 1966

  22. Rachel (age 2) and Katie (almost 4) on Leon, May 1967

  23. With Rachel and Katie, May 1967

  24. With Katie and Rachel, May 1967

  25. 42nd birthday, with Katie and Rachel, July 1, 1967

  26. With third child Michael, one day old, January 1968

  27. With Michael, 5 days old, February 1968

  28. Leon plays a concertina for Katie, Rachel, Michael, June 1969

  29. At Stanford Sierra Camp, Fallen Leaf Lake, June 1969

  30. With Michael and Katie, at home in Sherman Oaks, June 1969

  31. Rachel, Katie, and Michael on Leon, July 1969

  32. On Island of Hawaii, August 1969

  33. Jo and Leon with Katie, Michael, Rachel, October 1969

  34. Leon and Jo, October 1969

  35. Michael on Leon's back, January 1970

  36. Katie's 7th birthday at Lake Como, Italy, with Leon, Jo, Rachel, Michael, July 1970

  37. Leaving for Chile, June 1973

  38. Machu Picchu, September 1973

  39. In England, punting on the Cam, Leon with Rachel and Katie, July 1975

  40. Schwand, Switzerland, August 1975

  41. Leon shares his love of the mountains with his children, Switzerland, August 1975

  42. At home, November 1975

  43. Denmark, August 1976

  44. Playing cards with Michael and Katie, Denmark, September 1976

  45. At home in Cambridge, England, December 1976

  46. In Paris with Michael, Katie, Rachel, January 1977

  47. At Stonehenge with Michael, Rachel, Katie, February 1977

  48. Leon's 52nd birthday, with Michael, Rachel, Katie in English school uniforms, Cambridge, England, July 1, 1977

  49. Hiking with the family, Engelberg, Switzerland, August 1977

  50. Leon, July 1978   photo by Devra Breslow

  51. Santa Monica Beach at night, July 1978

  52. Leon with family, September 1978

  53. With party hats, Rachel's 14th birthday, Michael at left, March 1979

  54. 54th birthday, with Rachel, Katie, Michael, July 1, 1979

  55. Playing chess with Michael at Long Lake, Sierra Nevada, California, August 1979

  56. On Gabbott Pass, Sierra Nevada, elev. 12,480'  August 1979

  57. On Gabbott Pass, Sierra Nevada, Rachel, Jo, Michael, Leon, Katie, August 1979

  58. Lake District, England, Leon, Michael, Rachel, Katie, September 1980

  59. Jo and Leon, 1981

  60. Backpacking in the Sierras, with Michael, September 1981

  61. Kearsarge Pass, elev. 11,823'  with Michael and Jo, September 1981

  62. With Michael, November 1981

  63. Leaving for China, June 1985

  64. Leon's 60th birthday, July 1, 1985, atop Huang Shan (Yellow Mountain), China, with Rachel, Michael, Katie, Jo

  65. Blowing out candle on (steamed bread) birthday "peach," symbol of long life, atop Huang Shan, China, July 1, 1985

  66. 60th birthday banquet, Huang Shan, China, Leon with Katie, July 1, 1985

  67. On the Great Wall, with family, July 1985

  68. With family in traditional-style hotel room, Kyoto, August 1985

  69. Leon and Jo, November 1985

  70. Two professors, weighty matters, Leon with Russ Hardwick, November 1985

  71. Jo and Leon, April 1986

  72. Jo and Leon, 25th wedding anniversary, April 9, 1986

  73. Jo and Leon, Falmouth, MA, June 1986

  74. Leon, Cambridge, MA, June 1986

  75. Leon, Aswan Lake from the dam, Egypt, September 1988

  76. Leon and Jo, skit night aboard ship on the Nile, Egypt, September 1988

  77. Hiking in the mountains in France, September 1988

  78. At Geneva airport, September 1988

  79. Ready to make waffles, Lake Arrowhead, January 1989

  80. Leon and Jo aboard a boat on a conference excursion, Istanbul, August 1989

  81. In Selçuk, near Ephesus, Turkey, September 1989

  82. In a museum in Antalya, Turkey, September 1989

  83. At home, December 1989

  84. Leon and Jo, April 1990

  85. Jo and Leon, early 1990s

  86. 65th birthday celebration, July 1, 1990, Leon with Rob Silverstein, John Liebman, Ben Nefkens

  87. Jo and Leon, summer 1990

  88. Leon and Jo, backpacking in the Sierras, July 1990

  89. Leon and Jo, Tokyo, on their way to Indonesia, September 1990

  90. On the island of Sumba, Indonesia, September 1990

  91. Leon's camera fascinates, island of Moyo, near Sumbawa, Indonesia, September 1990

  92. Belted in yellow to visit a temple, Lombok, Indonesia, September 1990

  93. With a noted mask maker in Mas, Bali, Indonesia, September 1990

  94. Center of attention while touring a temple in Indonesia, September 1990

  95. Indonesia, September 1990

  96. Jo and Leon, March 1991

  97. At home with Michael, spring 1991

  98. With Rachel – about to get her MD – and Jo, San Francisco, May 1991

  99. Leon with Katie (JD from Boalt Law School, UC Berkeley), Michael, Rachel (MD from UCSF Med School), Jo, May 1991

  100. 66th birthday, July 1, 1991, with Michael, Sherman Oaks

  101. Hiking in Austria, August 1991

  102. In Paille, Provence, France, September 1991

  103. Leon and Jo at the Opéra Bastille, Paris, September 1991

  104. Jo and Leon, taken at Leon's Roosevelt High School 50th reunion, September 1991

  105. Jo and Leon, November 1991

  106. Leon, December 1992

  107. With Katie, Michael, San Francisco, February 1993

  108. Exploring Domme, Dordogne, France, September 1993

  109. At Liebman-Nicoletti wedding reception, Venice, Italy, May 1994

  110. With the family, Sherman Oaks, July 1994

  111. Leon and Jo, December 1994

  112. Leon at the piano, accompanying singers Jo, Rachel, Michael, December 1994

  113. With Katie in San Francisco, March 1995

  114. Leon, March 1995

  115. On tour in Tours, France, August 1995

  116. At the Grandes Ecoles Hotel, Paris, May 1996

  117. With Michael, who just received his M Arch degree, Yale, May 1996

  118. With Jo, at a conference in Santa Fe, June 1996

  119. "Hi!"
    Sherman Oaks, December 1996

  120. "Hi!"
    Monte Alban, Mexico, January 1997

  121. At breakfast, February 1997

  122. At the Pont du Gard near Avignon, March 1997

  123. Leon's 72nd birthday, with Michael, July 1, 1997

  124. In the Galapagos Islands, Jo and Leon, Frank and Ande Chen, February 1998

  125. Leon and Jo aboard ship, Galapagos, February 1998

  126. Leon, Galapagos, February 1998

  127. Aboard ship in the Galapagos, with Jo, February 1998   photo by Frank Chen

  128. With Katie, San Francisco, March 1998

  129. Jo and Leon, April 4, 1998, almost their 37th anniversary

  130. Jo and Leon, Sherman Oaks, May 1998

  131. 73rd birthday, with Jo, July 1, 1998

  132. With Jo, Black Dragon Pool Park, Lijiang, China, September 1998

  133. With the family, Sherman Oaks, December 1998

  134. At a lake on Fraser Island, while in Australia for a meeting, February 1999

  135. Feeding a crimson rosella, Lamington National Park, Australia, February 1999

  136. Presenting City of LA award to Vera Weaver on her 90th birthday, July 1999

  137. Villefranche-sur-Mer, France, June 2000

  138. At the stadium of Olympia, Greece, June 2000

  139. Chania, Crete, on Leon's 75th birthday, July 1, 2000

  140. 75th birthday on a ship on the Mediterranean, July 1, 2000

  141. 75th birthday on a ship on the Mediterranean, July 1, 2000

  142. Before dinner, cruise ship, Mediterranean, July 2000

  143. Leon and Jo at Hollywood Bowl, July 2000

  144. With Michael and Rachel, Kyoto, October 2000

  145. Dinner at a minshuku, Takayama, Japan, with Michael, Jo, Rachel, October 2000

  146. Jo and Leon, October 2000

  147. Leon, December 2000

  148. Leon and Jo, Anza Borrego, April 2001

  149. With Michael in Pompidou Center, Paris, June 2002

  150. 77th birthday, with Rachel, Jo, Michael, July 1, 2002

  151. Leon, June 2003

  152. Leon's 78th birthday, with Rachel, Michael, July 1, 2003

  153. Dining in Paris, October 2003

  154. Celebrating Leon's 80th birthday at Sequoia, July 2005

  155. With the bouquet after wedding of Katie and Adrian, 8-8-2005

  156. Jo and Leon, November 2006

  157. Leon's 83rd birthday, with Rachel, July 1, 2008

  158. Rachel, Leon, Jo, and Michael Knopoff, Adrian and Katie Wadley, San Francisco, March 2009

  159. With Rachel and Jo at reception on terrace of House of Lords, London, June 2009

  160. With first grandson, November 2009

  161. With first grandson, June 2010

  162. Leon and Jo, together in spirit always
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