[919] Hildeburn, II, 164.
[920] Prowell, I, 540.
[921] Elihu Underwood was teacher at Warrington in York County in 1784 (See Warrington Mo. Mtg. Min., 1-10-1784, 47.)
[922] Norris Ms. Collection, H. S. P.
[923] P. C. S. M., I, 64.
[924] Ibid., 26; also Min. Phila. Mo. Mtg., 7-30-1779, 151.
[925] In 1741 Buller advertised the teaching of writing, arithmetic, merchants’ accounts, navigation, algebra, and other parts of the mathematics to be taught at the “Public School.” (Pa. Gaz. No. 673, 1741).
[926] Ibid., 84.
[927] Ibid., 101.
[928] Ibid., 122.