On June 21, 1924, at the age of 30, Clarence married Sarah Merry Bradley. In Sarah, Clarence found the perfect helpmate and ideal companion. Together they were a team, allowing Clarence to make invaluable contributions to the worldwide birth control movement. In October 1925, three weeks before the birth of the first of their five children, Clarence introduced himself to Dr. Robert Latou Dickinson, who in 1923 had established the National Committee on Maternal Health. Clarence wrote his mother about their first conversation, when Dickinson said that birth control is socially much needed, and that “young men like you ought to take up the work.” Dickinson asked Clarence, “Don't you want to help me and keep on with the work when I am through?” Certainly Dickinson's question smacked of prophecy, for in 1929, a number of events converged to send Clarence decisively on the path to helping Dickinson in service of what Clarence would always call the “Great Cause.”