Some 3,660 alumni and guests braved blustery weather that turned to sunshine to attend this year’s Tech Reunions June 6–9. They took part in 163 activities, from Toast to Tech, which drew about 700 people for music and dancing Saturday night, to the Technology Day Luncheon, where class leaders announced a total of $125,792,105 in gifts. The 50th-reunion class’s 69 percent participation rate was bested only by the Class of 2013’s record-setting 83 percent. Under rainy skies, John Lynch ’63, SM ’65, and Mike Bertin ’63 head their 50th-reunion class as they lead the commencement procession into Killian Court. The Class of 1963 gathers for a group photo. President L. Rafael Reif and his wife, Christine, join the dancing during Toast to Tech Saturday night. Reunion Row winners Tony Fiory ’63, Dick Millman ’62, Chet Riley ’62, Ken Andersen ’63, and Bob Kurtz ’63 hold a photograph documenting their earlier triumph, winning the Compton Cup for MIT in 1962. Members of the MIT10, who earned degrees in the past 10 years, gather at the MIT Museum. Honorary memberships in the Alumni Association were awarded to Larry Anderson (left), head coach of the men’s basketball team, and EECS professor Cardinal Warde (right). MIT police chief John DiFava (center) accepted the HM for Sean A. Collier, the campus police officer killed on duty April 18, 2013. Class of 1973 leaders join hands to celebrate their 40th reunion. Incoming Alumni Association president John Jarve ’78, SM ’79, receives the gavel from Chiquita White ’85, who served in 2012–13. Teams go 3-D as they cram as many people as possible in a circle for the Tech Challenge Games. Alumni chat at a Chinese Student and Scholar Association gathering. Professor John Harbison and the MIT Vocal Jazz Ensemble perform for alumni at the 116th Tech Night at Pops. President Reif happily accepts a colorful hat symbolizing honorary membership in the Class of 1973, which shares his college graduation year. Shirley Ann Jackson ’68, PhD ’73, addressed a Black Alumni of MIT (BAMIT) reception whose attendees included Allan Blanchard ’13. Current graduate students share their research with graduate-degree alumni during a poster session. President Reif congratulates members of the Class of 2013 on their senior class gift; a record 83 percent of graduates contributed. Members of the Class of 1988 celebrate their 25th reunion: from left, Pascale Kavanagh ’88 and her daughter Sofi Ayling, Kamala Grasso ’88, SM ’90, and Michael Adelberg ’88. Child’s play during reunions may help prepare future MIT students.