Leo P. O'Brien (July 20, 1893 – March 25, 1968) was a member of the Wisconsin State Senate from the 2nd District.
O'Brien was born on July 20, 1893, in Fond du Lac, Wisconsin.
[1][3][4] During World War I and World War II, he served with the United States Navy.
[1] He died in 1968 of a heart attack.
[1][5][6][7] O'Brien was a member of the Senate from 1953 to 1964.