Humphrey DeForest Bogart was born on December 25, 1899 in New York, to Belmont DeForest Bogart and Maud Humphrey.
Belmont was the child of the unhappy marriage of Adam Watkins Bogart, a Canandaigua, New York innkeeper, and his wife, Julia, a wealthy heiress. The name "Bogart" derived from the Dutch surname "Bogaert". Belmont and Maud married in June 1898; he was a Presbyterian, of English and Dutch descent, and she was an Episcopalian of English heritage, and a descendant of Mayflower passenger John Howland.
Bogart's father, Belmont, was a cardiopulmonary surgeon. His mother, Maud, was a commercial illustrator who received her art training in New York and France, including study with James McNeill Whistler. Later she became art director of the fashion magazine The Delineator and a militant suffragette. She used a drawing of baby Humphrey in a well-known advertising campaign for Mellins Baby Food. In her prime, she made over $50,000 a year, then a vast sum and far more than her husband's $20,000. The Bogarts lived in a fashionable Upper West Side apartment, and had an elegant cottage on a 55-acre estate on Canandaigua Lake in upstate New York. As a youngster, Humphrey's gang of friends at the lake would put on theatricals.
Humphrey had two younger sisters, Frances ("Pat") and Catherine Elizabeth ("Kay"). His parents were busy in their careers and frequently fought. Very formal, they showed little emotion towards their children.
As a boy, Bogart was teased for his curls, tidiness, the "cute" pictures his mother had him pose for, the Little Lord Fauntleroy clothes she dressed him in, and even for the name "Humphrey".