"Fig 13 - Wilson's School-House, near Gray's, Ferry, Philadelphia. From a drawing by M. S. Weaver, Oct. 22, 1841, received by Elliott Coues, February, 1879, from Malvina Lawson, daughter of Alexander Lawson, Wilson's engraver." Elliot Coues, 1884

School House in Gray's Ferry, Philadelphia

"Fig 13 - Wilson's School-House, near Gray's, Ferry, Philadelphia. From a drawing by M. S. Weaver, Oct.…