Nathan Spencer was a Pennsylvania farmer, and is identified as "a farmer who owns the place that was once Godfrey's."
1 volume, 38 p., copy.
Received and accessioned, 1911 (1911 47259).
This volume contains an essay, apparently written by Pennsylvania farmer Nathan Spencer, about Thomas Godfrey. There are also copies of James Logan's correspondence. Some believe Godfrey invented the quadrant, and Spencer's biography argues this point. Spencer also claims to live on the same farm that Godfrey had owned.