Christine Ladd married mathematician and editor Fabian Franklin.
On October 6, 1886, Christine Ladd married Fabian Franklin, a mathematician and later prominent journal editor who had also been associated with Johns Hopkins University. Following the marriage, she adopted the hyphenated surname Ladd-Franklin, a choice unusual for the period that signaled her intention to retain her professional identity alongside her married name.
The marriage proved to be an intellectual partnership as much as a personal one. Fabian Franklin was supportive of his wife's scholarly ambitions at a time when many husbands expected wives to abandon careers upon marriage. Christine Ladd-Franklin continued her research and publishing in logic and psychology throughout their marriage, and the couple had one daughter, Margaret, though another child died in infancy.
Their partnership allowed Ladd-Franklin to remain embedded in academic circles in Baltimore and later New York, where Fabian's editorial connections (including with the Baltimore American and later the New York Evening Post) kept the family connected to intellectual and political discourse. The marriage did not slow her scientific output; if anything, the stability and support it provided helped her sustain a decades-long career in an era when married women were rarely permitted to maintain professional lives. Her retained hyphenated name became emblematic of a generation of women negotiating professional identity within traditional marital structures.