Interesting!!!
The Jack Dougherty listed as a sophmore in 1941 doesn't appear in his jun/senior yearbooks of 42/43.
The age quote from his testimony doesn't work either unless he was referred to as "Redfern" and graduated at the age of 14.
My speculation for making sense of Dougherty's testimony along with the yearbooks:
Jack Dougherty finishes Sunset High School(1937) as a freshman at 14 yrs old.
Drops out until school year starts (September 1940), where he enrolls as a 17yr old sophmore (hence his name listed as such in the 1941 yearbook).
Drops out again and reaches 18yrs of age in Aug 1941.
Starts working for grocery stores for 1 year.
Turns 19 in August of 1942.
Signs up for military service 2 months later: Mr. BALL - Where did you go to school?
Mr. DOUGHERTY - Sunset High School.
Mr. BALL - You went through Sunset High School?
Mr. DOUGHERTY - Yes, sir.
Mr. BALL - What year did you get out of high school? About?
Mr. DOUGHERTY - Oh, 1937.
Mr. BALL - 1937?
Mr. DOUGHERTY - Yes.
Mr. BALL - What kind of work did you do after that?
Mr. DOUGHERTY - Well, of course, a year or so, you might say--just work in grocery stores until I was 19 and volunteered for the Armed Services in October--October 24, 1942.