"John Kallam graduated with a" joke

John Kallam graduated with a BA in criminology and entered the U.S.
Army. He served for 20 years beginning in the late 1930's. He was
an investigator during the Nuremberg trials of Nazi war criminals,
and stayed in Germany for many years organizing civilian police forces
in the post-war era. He also wrote numerous books on criminal
justice. He retired from military service in the late 1950's at the
rank of full colonel.
Returning to Fresno, California, he began teaching criminology at what
was then Fresno State College. (Later to become the California State
University, Fresno.) His work was well respected, but after about ten
years of service, he was called to see the president of the college.
He was informed that he could no longer teach with just a bachelor's
degree. Times were changing, he was told, and the school demanded
that faculty members hold a graduate degree. Merely having 20 years
of distinguished experience was no longer considered sufficient
qualification to teach. All new faculty were being required to hold
a doctorate, it was explained, and the school was actually doing him a
favor by letting him keep his job by getting "only" a master's degree.
So John enrolled in a summer program at an out of state college.
Three months of intensive seminars and then nine months of home study
would get him his MA.
On the first day of class, the instructor was taking roll. He stopped
when he read John's name. "Are you related to the John Kallam who
wrote the textbook we'll be using?" he asked.
"I am the John Kallam who wrote the textbook you're using," came the
dry response.