neighborhood of
Washington, D.C. Note his mother Angeline on front steps, and two Black workers. The house later served as the parsonage and fellowship hall of
Alexander Memorial Baptist Church. The son of astronomer
Asaph Hall, III (1829–1907) and
Angeline Stickney Hall (1830–1892), he was born in Georgetown, Washington, DC, the youngest of four brothers. His eldest brother was
Asaph Hall, Jr. Percival Hall took a degree in mathematics at
Harvard University in 1892. While still a student, he worked as an architectural surveyor for the
Chesapeake and Ohio Railway (C&O), making drawings of existing structures with plans for improving bridges, as well as plans for proposed structures in the expansion of the railroad. The work was hard, as much of the time was spent in wild areas that required him to camp; hunting and cooking his own food. He observed that he saw few older people in this employment and that the work took a heavy toll on his colleagues. A friend and roommate from Harvard, Allen Bradshaw Fay, whose father, Edward Allen Fay, was the Vice President of Gallaudet College, suggested that he teach the deaf. Initially his family tried to dissuade him, as they felt that, with his adventurous spirit, he would soon be bored with life as a teacher. But, Hall felt that he could make a contribution to the developing field of deaf education. ==Gallaudet==