Deed records of manumission:
[slave name, age, when to be free(if no date, immed), owner, date of document, deed book reference, comments]
- Boss Thomas Hammond 5/11/1785 WR 5 415
- Boss ~20 to be free 1/8/1844 Area Hammond 2/7/1824 JS 19 288 AH of Fred. Co.
- Boss 38 Thomas Hammond 7/29/39 HS 9 322 "TH of Fred. Co.; ""release my dark mulatto man Boss"" ; purchased at the state of personal property of John Walker dec'd in 1830 to serve until the 8th day of January 1844 by Mrs. Area Hammond who afterwards intermarried with the said John Walker reference being had to the said deed of manumission recorded in the Office of the Clerk of Fred. Co Court will more fully appear the said mullatto apperentemed Boss, being able to work and gain a sufficient livelihood and maintenance"" Note from Tombstones Project for Fairmont Cemetery, Libertytown MD "" A stone found here was carved by Sebastian ""Boss"" Hammond, born a slave about 1800,
he bought his freedom with money earned carving tombstones. Boss was owned during his years of slavery by Upton Hammond,
John Walker and Col. Thomas Hammond, who freed him in 1839.
"" ref: www.usgwtombstones.org/maryland/frederick.html "
- horse sale by former slave Boss Hammond to Thomas Hammond 7/29/1839 HS 9 323 Not a manumission. Sold by Boss Hammond for $107to Thomas one bay mare named Ellen Oscar, one sorrel mare named Match One Red Cow

1850 Census District 8, Fred Co, MD #408
Boss Hammond 51, stone cutter
Mary C Hammond 35
Lyd S Hammond 18, laborer
John T Hammond 16, laborer
Martha Hammond 14
Harriett Hammond 12
Juliann Hammond 10
Maryann Hammond 8
Adiseclla Hammond 6
Elias Hammond 4

1860 Census, Oak Orchard PO, Liberty District #526
Boss Hammond 58, lime burner, 900, 200
Marcella Hammond 40
Adicilla Hammond 16, servant
Elias Hammond 14
Mary A Hammond 12
Jeremiah Hammond 10
John J Hammond 8

1870 Census Linganore PO, Liberty Dist, #334
all MD,MD,MD, none can read or write
Boss Hammond 78, stone cutter, 1500, 500
Marcellia Hammond 58
Cronan Hammond 15
Elias Hammond 22, farm laborer

neither parent found in 1880 census