Deamer was born on April 24, 1907, in New York City, the son of Pierce H. Deamer and Adelaide Bernhardt Deamer. His father was a national labor organizer and served as Vice President of the Upholsterers International Union.[1] He moved to Bergenfield, New Jersey, in his youth and graduated from Tenafly High School and the New Jersey Law School (now Rutgers School of Law–Newark).[2][3] He maintained law offices in Bergenfield, where he served as the Bergenfield Municipal Judge and as Chairman of the Bergenfield Civil Defense. He was Municipal Attorney for Bergenfield and New Milford. He was counsel to the Bergen County Sheriff from 1948 to 1951.[4]
The U.S. Supreme Court, in Reynolds v. Sims (more commonly known as One Man, One Vote), required redistricting by state legislatures for congressional districts to keep represented populations equal, as well as requiring both houses of state legislatures to have districts drawn that contained roughly equal populations, and to perform redistricting when needed.[6] Because of its population, Bergen County gained three Senate seats.
A deep split among Bergen County Republicans intensified in 1963 when Deamer and former State Senator Walter H. Jones faced off in an election for Bergen County Republican Chairman. Jones won,[7] and by 1965, Deamer found himself dumped from the Bergen County Republican Organization line. Jones backed Assembly Speaker Marion West Higgins, Assemblyman Peter Moraites, and former Assemblymen Nelson G. Gross and Arthur Vervaet. Deamer ran on an insurgent ticket with Assemblymen Richard Vander Plaat and Harry Randall, Jr., and former Assemblyman Carmine Savino.[8] Jones' slate won decisively.[9]
1965 Republican primary for State Senator - Bergen County