John Gummere (1784-1845) was born in 1784 near Willow Grove, Pa., the son of Samuel and Rachel (James) Gummere. Gummere was a teacher, and taught at Horsham, Pa. (1803) and Westtown School (1808-1815), before opening his own school for boys in Burlington, N.j. (1815). He married Elizabeth Buzby in 1808, and the couple had 11 children: Elizabeth, Frances,George, Henry Deacon, John, Martha, Mary, Rachel, Samuel James, Susan, and William. In 1825, Gummere earned his M.A. from princeton, and in 1833, he became a teacher at Haverford College, where he would later become superintendent. Among Gummere's published works were: "Treatise on Surveying," "Treatise on Theoretical and Practical Astronomy, and "An elementary treatise on Astronomy."