When Lawrence Stephen Lapee was born on 7 April 1890, in Washington, Missouri, United States, his father, Eugene Alexander Lapee, was 37 and his mother, Lena Clementine Thebeau, was 21. He married Mary Pearl Henry on 24 December 1911, in Washington, Missouri, United States. They were the parents of at least 3 sons and 1 daughter. He died on 14 November 1974, in Longmont, Boulder, Colorado, United States, at the age of 84, and was buried in Longmont, Boulder, Colorado, United States.