He was the husband of Anna Potapova Le Tiec; father of Philipine Girard-Leduc, Pauline Girard-Leduc and Charlotte Girard-Leduc, all of Paris, France, and Alexis Girard-Leduc of Westborough; brother of Jean Girard-Leduc and Christine Girard-Leduc both of Paris, France; and grandfather of Hugo Benard, Adele Benard, Hadrien Roger-Vasselin and Paul Ghuysen.