Archive March 3, 1797 Joint Letter to George Washington (1797) Ashbel Green, John Ewing, William Marshall ⬩ 1864
Archive Dissent of the Second Presbytery of Philadelphia (1773) Francis Alison, D.D., John Elder, John Ewing ⬩ 1841
Archive An Improvement in the Construction of Godfrey’s (Commonly Called Hadley’s) Quadrant John Ewing ⬩ 1789
