His immigration and naturalization papters say he was born in 1879, but the census records indicate his age based on the 1884 date. However, the birth dates for all his children also vary from other records as well.
[Obituary] The Los Angeles Times - Thu, 29 Jun 1972, pg 29
Rites Set for Philanthropist Mark Carfer
Funeral services for Mark Carter, 88, Russian-born philanthropist and pioneer businessman in Los Angeles, will be conducted at 11 a.m. today at Malinow & Silverman Mortuary. Mr. Carter died Tuesday. He was president of the City of Hope from 1936 to 1939 and had served on
the hospital's board since 1930. In 1949, he was lifetime honorary president. His son, Victor, followed in his footsteps, serving as president from 1949 to 1957. He also is a honorary
lifetime president. The elder Carter was former vice president of the United Jewish Welfare campaign and for many years was president of its division for organizations. He was vice president of Organization for Rehabilitation through Training, an agency aiding refugees arriving in the United States. He was named ORT Man of the Year in 1966. Mr. Carter came to Los Angeles in 1921 and established the Carter Hardware Co. In addition to his son, Victor, he leaves another son, William; four daughters, Mrs. Shura Kompaniez, Mrs. Marie Horowitz, Mrs. Mathilde Moore and Mrs. Bella Gans.