Using data on 509 cases from a census of a large Michigan county's div
orces involving minor children filed in the early 1980s, we model the
likelihood that mothers versus fathers will receive sole physical cust
ody in final judgments. Substantial gender differences in the effects
of socioeconomic and legal process variables on custody outcomes are f
ound. The odds of father custody are enhanced when children are older,
especially when the oldest child Is male, when the father is the plai
ntiff and when a court investigation has occurred during divorce proce
edings. Odds of father custody are reduced by higher educational level
for mothers, higher income for fathers, paternal unemployment, and su
pport arrearages prior to final divorce judgments.