Gary Chapman was a Vietnam veteran. He was close to Caroline Boss.
Democratic Socialist Alliance
In 1978 and 1979, Gary Chapman "an older student" led the Democratic Socialist Alliance, at Occidental College, Los Angeles.
Pro DSOC figure
In 1979 Gary Chapman was chairman of the Occidental College Democratic Socialist Alliance. He wrote and article for The Occidental, February issue, "Grass roots groups offer hope for '80", praising the role of Democratic Socialist Organizing Committee member William Winpisinger in the Democratic Party. 
- The Occidental, Feb., 1979 page 3