Baker was born on September 28, 1872, in San Francisco, California, the son of Conrad Baker of Philadelphia and Angelia Ingargiola of New Orleans. He had three siblings, Dollie E., Andrew Jr. and Cora. Baker attended Lincoln Grammar and Hayes Valley Grammar schools in San Francisco and graduated from Commercial High School in that city; he then did four years of legal study with the firm of Frank and Eisner, also in San Francisco. He was president of the Roadamite Paving Company and spent some years in engineering and construction. He lived briefly in San Jose and "was instrumental in developing the oil industry in Central California counties." Baker was married in 1872 in Philadelphia to Carrie L. Moulton; they divorced in 1918. Baker next married Lura Cassingham in 1921 in San Jose, California. Baker had three sons, Conrad, Addison and Edwin L., and a daughter, Mrs. William N. Luther. He moved to Los Angeles in 1923 and, with others, did civic work in developing East Los Angeles with parks, roads, drainage systems and playgrounds. Baker was a member of the City Club, Native Sons of the Golden West, Kiwanis and Masons. He was a Protestant and termed himself a Progressive Republican. He was connected with the Arcadia-Baker-Bandini Estates. Baker died at the age of 83 on April 13, 1953, in his home, 428 Rosemont Boulevard, San Gabriel. He was buried in Rosehill Cemetery.
1931 Baker was in the forefront of an attempt to rid the City Hall of what were called "snoopers" — employees of both the city prosecutor's and the mayor's offices, who were authorized to make investigations on those officials' behalf. The functions of the employees overlapped those of the police department, it was said. His particular targets were the Rev. Martin Luther Thomas, chief investigator for the prosecutor, and W.J. Mosher, the mayor's confidential secretary, whom he called "pussy-footers" valueless to the city. Thomas replied: "Mr. Baker is either wilfully ignorant of the activities and duties of the investigating department of the City Prosecutor's office, or else has deliberately allowed himself to be made the mouthpiece of designing politicians and underworld groups." As part of the squabble, Baker also "hurled defiance" at the Rev. Robert P. Shuler, whom he called "that loud-mouthed radio preacher down on Flower Street. 1931 He was one of the eight council members who in July 1931 voted against appealing a judge's decision ordering an end to racial restrictions in city-operated swimming pools, thus ending the practice. Six council members wanted to continue the legal fight. The pools had previously been restricted by race to certain days or hours. 1932 Baker introduced a resolution asking for an ordinance to require inspection and certification of raw-milk dairies, a move opposed by Council Member Evan Lewis, who asserted it was a scheme to raise the price of milk. 1934 He urged that the City of Los Angeles withdraw from Los Angeles County and form a county of its own.
