Husband of Ann Jones Brashear, she was the daughter of William and Dorothy (nee Cager/widow of Mr. Munroe).
Samuel's older brother, Benjamin Brashear, Sr. married Mary Jones, Ann's sister; so the two sets of children were "double cousins", (that is, their fathers were brothers, which made them cousins and their mothers were sisters, which made them cousins a second time.) The girl's father, William Jones sold or gave a plot of land called "Cuckhold's Delight" to Benjamin and Samuel. The brothers lived the rest of their lives on this plot, and their brother, Robert, IV, lived at least part of the time on a plot adjoining.

The births of the children of Samuel and Ann Jones Brashear are registered at St. Barnabas Protestant Episcopal Church in Queen Anne's Parish, Prince George's County, Maryland. Also in the Will of Samuel Brashear in Queen Anne's Parish Records, Maryland. Historical Society, Baltimore; and Maryland Historical Magazine, v. 23, page 113.
The children of Samuel and Ann Jones Brashear were:
1. William Jones Brashear, born Jan. 28, 1694/5.
2. Samuel Brashear, Jr., born Feb. 12, 1696/7 and died 1773. He married his double first cousin, Elizabeth Brashear, daughter of Benjamin Brashear, Sr..
3. Elizabeth Brashear, born July 27, 1699 and married John Turner, Sr.
4. John Brashear, Sr., born SAep. 21, 1702 and married Ruth Walker.
5. Robert C. (Cager?) Brashear, born Feb. 10, 1704/5 and married Charity Dowell.
6. Ann Brashear, born May 15, 1709 and married Thomas Brown.
7. William Brashear, "Junior", born 1709/10 and married Pricilla Prather.
8. Bazil (Basil) Brashear, born March 18, 1714 and married Anne Belt, daughter of Benjamin and Elizabeth Middleton Belt.
9. Otho Brashear, born Oct 18, 1716 and married Mary Holmes.
10. Mary Brashear, born June 10, 1720.
(Source; "A Brashear(s) Family History", by Charles Brashear)