Dr. Langsdorf grew up in Pasadena and graduated from PJC in 1929. After graduation from Occidental College where he transferred, he returned to PJC to teach in the Social Sciences Department and soon moved up to Department Chair. From 1939-1950, he served as assistant principal, then principal of Pasadena City College. He resigned in 1959 to become the first president of the newly-created Orange County State College (Cal State Fullerton).

1950 - PCC celebrated its Silver Anniversary.
1953 - Pilot Nursing, an experimental, three-year program was launched.
1954 - The educational structure was changed by the Board of Education from the 6-4-4 plan to the 6-3-3-2 plan (six elementary, three junior high, three senior high, and two junior college years). Dr. Langsdorf was the leader during a difficult period of transition from the four-year to the two-year institution. He also coordinated the merger of John Muir Junior College and PCC into a single two-year junior college. Langsdorf's title changed to President of Pasadena City College. Pasadena High School split from PCC but stayed on this campus site until its own campus could be built in 1960. The college mascot became the Lancer; the colors became red and gold.
1957- Horrell Field, dating from the early 1900's, was rededicated to the five Horrell brothers, all PJC star athletes.A new music building was completed and dedicated.
1958 - A massive campus building program was begun (though all facilities took years to be completed): Campus Center building, a new Women's Gym, a College Bookstore and Bank, and a Planetarium.

"As I leave Pasadena City College I want to thank students and faculty alike for their many kindnesses, and for being such splendid people. You make up Pasadena City College, and PCC is not only one of the two largest junior colleges in America, but is unsurpassed in the quality of its education and in the success of its graduates. As one who has seen junior colleges from many points of view, I congratulate you students on the great opportunities you have here in Pasadena. I hope you realize them in the fullest sense. Be proud of your college, promote its best interests, and after you leave, remember it well and return often to its halls." (Farewell Message, 1959 Yearbook)