Notable graduates
Before they were famous
They were seniors like everyone else in these yearbooks. Each is matched to the person they became on evidence we show below — a birth date, a nickname, a team.

Cambridge High and Latin School · Class of 1923
D. D. Kosambi
Indian mathematician, statistician and historian. In the yearbook: Damodar D. Kosambi.
How we know: Birth date printed in the yearbook (July 31, 1907) matches Wikidata exactly; Wikidata: educated at Cambridge High and Latin. Wikipedia

Cambridge High and Latin School · Class of 1925
Leroy Anderson
Composer of “Sleigh Ride”, “The Typewriter” and “Blue Tango”.
How we know: Birth date printed in the yearbook (June 29, 1908) matches Wikidata exactly; Wikidata: educated at Cambridge High and Latin. Wikipedia

Arlington High School · Class of 1927
Johnny Kelley
Ran the Boston Marathon 61 times, winning in 1935 and 1945. In the yearbook: John A. Kelley.
How we know: Arlington High, born 1907; the yearbook names him captain of cross country and 'another fast fellow... as a runner'. Wikipedia

Malden High School · Class of 1927
Ralph Marston
Professional football player. In the yearbook: Ralph Fulsom Marston.
How we know: Malden High, born 1907; the yearbook names him football captain. Wikipedia

Arlington High School · Class of 1928
Carl Sumner
Professional baseball player.
How we know: Arlington High, born 1908; the yearbook lists him on the baseball team, nicknamed 'Lefty'. Wikipedia

Arlington High School · Class of 1929
Alan Hovhaness
Composer of more than 400 works, including the symphony “Mysterious Mountain”. In the yearbook: Alan Chakmakjian.
How we know: Born Alan Vaness Chakmakjian (1911); Wikidata: educated at Arlington High; the yearbook's quotation is about music. Wikipedia