Frederick was
ordained deacon in the
New York East
Annual Conference of the
Methodist Episcopal Church in 1917. He was ordained elder in the same in 1919. He served as the pastor of the People's Home Church and Settlement, New York City (1917–20). He was then appointed the assistant executive secretary of the New York City Society of the Methodist Church (1920–30), and the executive secretary of the same (1930–52). Rev. Newell was elected a delegate to the 1939 Uniting Conference of
Methodism (having served as the chairman of the Commission on Church Union), as well as to the quadrennial General and Jurisdictional Conferences of The Methodist Church (1940–52). ==Episcopal ministry==