My husband is a Brinton descendant and we have the Brinton genealogy book.I found these folks in the book:
George Brinton (b. 3/19/1839, d. 6/21/1916) and Annie Miller were married in Harrisburg (presumably PA) on 2/15/1872.There children are listed as:
William Myrtle (m. Howland Sweetland) Lawrence Esther Griffiths
George was the son of Caleb and Sarah (Alleman) Brinton. Caleb (b. 10/16/1810 in Chester County, d. 7/14/1898) was the son of John and Lydia (Canby) Brinton.It looks like Caleb had a brother John who also married an Alleman, given name Katherine.
Hopefully that will get you started.Let me know if you need more.