The Families of Adam Keith

Inventors and their inventions


Shading pen [for writing]


Edgar Stoner Hengst [1873-1931]


Ancestry:  Adam Keith1>Balthasar Keith2>Anna Maria [Keith] m. [Philip Jacob] Olewiler3>Leonard Olewiler4>Jacob S Olewiler5>Leonard E. Olewiler6>Della K. [Olewiler] m. [Edgar Stoner] Hengst7

United States Patent Office


Edgar Stoner Hengst, of Hellam, Pennsylvania




Specifications forming part of Letters Patent No. 577,188 dated February 16, 1897. Application filed April 22, 1896. Serial No. 588,622 [No model]


"Be it known that I, Edgar Stoner Hengst, a citizen of the United States and a resident of Hellam, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Self-Feeding Shading-Pens, of which the following is a specification ..."


U. S. Census Information


1900 PA>York>York Ward 6 Edgar S. Hengst 27 PA [5/1873] telegraph operator, Della [indexed Letta] K. 23 PA [12/1877], Marian O. 1 PA [11/1899]