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.
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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.