Here is some more information for you regarding old Eucyldes:
in the American Encyclopedia of Quaker Genealogy (Hinshaw)
A Friendly Heritage, Gillam-Longshore-Cock, page 192, Family History Center, SLC, Utah the following: Euclydus M 1780 Sarah Gillam, daughter of Lucas and Anne Dungan Gillam of Middletown, Pa. They had (1)Euclydus 111, born 1781, died Oct 1,1838 who married Sarah Cox, daughter of Issac Cox. He moved to Ohio and had decendants. (2)Margaret, born 1783 (3)Abraham, born 1785, died 1855, married Rhoda Skelton, daughter of Joseph and Mary Carey of Solebury. (4)Joseph, born Nov 24,1788, married Joanna Kelly. (5)Grace, born 31 Aug,1790, Middletown, Dauphin, Pa.,(6)Rachel, born 1792, who married 1811, at Newtown by Issac Hicks J.P., Valentine Dickerson, son of John and Mary Sweeney Dickerson of Middletown, (7)Thomas Canby, born Jun 21, 1794, married Jane Gaines, (8)James, bornNov 17, 1797, Died 1861, married Sarah Roberts.