John OCallahan:
CLASS OF 1966
Cambridge Latin High SchoolClass of 1966
Cambridge, MA
John's Story
John is from Greenville, Rhode Island. John's schools include Cambridge Latin High School. And Northeastern University. I served in...Expand for more
the Army Reserve as a Captain from 1971 to 1980. I taught Math and Science in Holliston, Ma for 38 years and am currently retired.
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