Noted events in his life were:
1. Residence: in 1800 in Medford, Middlesex, MA. 11
2. Military on 14 Aug 1777 in Concord, Middlesex, MA: Captain in the Revolutionary War. 14 Duncan Ingraham of Concord, Mass. was drafted for Continental service, and returned for Concord, Mass, by Cap. Thomas Hubbard for Col. Brooks regiment and his name appears in a list of men who marched under Capt. Minot, the date of enlistment and duration of service not being stated.
3. Residence: in 1790 in Concord, Middlesex, MA. 10
4. Fact: Concord's African Amaerican History Maps: Cato and Phyllis Ingraham House Site, 1795, Concord, Middlesex, MA. Cato and Phyllis Ingraham House Site: When local squire Duncan Ingraham moved to Medford in 1795, his man Cato asked if he could marry a local (currently or formerly) enslaved person named Phyllis and bring her along. Duncan replied that Cato could marry but only if he stayed behind in Concord, severed his ties with his master, and sought no further financial assistance from him. Cato chose Phyllis over a secure financial future and Duncan thus abandoned him to his freedom, providing him only with a small house and permission to live in it on an acre of sandy land in Walden Woods. Thoreau bemoans Cato's early death. He and his family died of diseases associated with malnutrition. Thoreau was inspired to live in Walden Woods due to these courageous individuals.
5. Moved: From Concord to Medford, 1795, Medford, Middlesex, MA.
6. Book: The Story of Concord, 1906. 15
7. Magazine: Concord Magazine: Concord, Slaves and Two Fights for Freedom, Jun 1998, Concord, Middlesex, MA. 16 Town slave owners in 1775 included Tory and former slave trader Duncan Ingraham (Cato); Town Meeting moderator, Dr./Col. John Cuming (Brister); militia Capt. George Minot (Caesar); muster master Samuel Whitney (Casey); Rev. William Emerson (Frank); Deacon Simon Hunt (Caesar); and Tory, religious activist Dr. Joseph Lee (Cato). While these slaves may not have fought at North Bridge, some would later serve in the war.
8. Magazine: Concord Magazine, Aug 1999, Concord, Middlesex, MA. 17 Wealthy merchant, former slave trader and militia captain, Duncan Ingraham moved to town in 1772. Also refusing to sign political resolves or covenants, he was labeld a Tory and after entertaining British oficers at his home, was harrassed to th epoint of having a shee's head tied to his chaise. Eventually he would side with his neighbors speak of the independene of "his" country and be an origianlmember of the Concord Social Circle.
9. Book: South Carolina Biographical Dictionary, 2000. 18
Duncan married Susanna Blake, daughter of Henry Blake and Susanna Newell, on 7 Dec 1749 in Boston, Suffolk, MA.1 2 (Susanna Blake was born on 10 Nov 1724 in Boston, Suffolk, MA,13 19 died on 18 Mar 1770 in Boston, Suffolk, MA 13 and was buried in Boston: Kings Chapel Burying Ground, Suffolk, MA 20.)
1 FamilySearch.org, <i>Massachusetts Marriages, 1695-1910</i>, https://familysearch.org/pal:/MM9.1.1/FCQR-NNT Duncan Ingraham and Susanna Blake, 07 Dec 1749.
2 Dodd, Jordan, Liahona Research, comp, Massachusetts, Marriages, 1633-1850 (Ancestry.com Operations Inc).
3 Drinking Gourd Project, <i>Concord’s African American & Abolitionist History Map</i> (http://drinkinggourd.cchumanrights.org/drinkinggourdproject_map.pdf).
4 Ancestry Family Trees (Online publication - Provo, UT, USA: Ancestry.com. Original data: Family Tree files submitted by Ancestry members.), Ancestry Family Tree.
6 Duncan Greenleaf Ingraham, <i>Ingraham Family in America From 1653</i> (1922.).
7 Ancestry.com, The New England Historical & Genealogical Register, 1847-2011 (Ancestry.com Operations, Inc.).
8 Ancestry.com, <i>U.S., Sons of the American Revolution Membership Applications, 1889-1970</i> (Original data: Sons of the American Revolution Membership Applications, 1889-1970. Louisville, Kentucky: National Society of the Sons of the American Revolution. Microfilm, 508 rolls.), Volume: 65; SAR Membership Number: 12847.
9 New England Historic Genealogical Society, Massachusetts, Town Death Records, 1620-1850 (Ancestry.com Operations Inc).
10 <i>1790 United States Census</i>, Year: 1790; Census Place: Concord, Middlesex, Massachusetts; Series: M637; Roll: 4; Page: 158; Image: 182; Family History Library Film: 0568144.
11 <i>1800 United States Census</i>, Year: 1800; Census Place: Medford, Middlesex, Massachusetts; Roll: 17; Page: 1169; Image: 107; Family History Library Film: 205615.
12 New England Historic Genealogical Society, Massachusetts, Town Marriage Records, 1620-1850 (Ancestry.com Operations Inc).
13 Ancestry.com, Massachusetts, Town and Vital Records, 1620-1988 (Ancestry.com Operations, Inc.).
14 Secretary of the Commonwealth of Massachusetts, <i>Massachusetts Soldiers and Sailors in the War of the Revolution, 17 Vols.</i> (Boston, MA, USA: Wright and Potter Printing Co., 1896.), Vol. 8, page 634.
15 Swayne, Josephine Latham, <i>The Story of Concord</i> (E. F. Worcester Press, 1906 Read online at http://books.google.com/books?id=ikYVAAAAYAAJ .), Pages 219-220.
16 <i>Concord Magazine</i> (Concord, Massachusetts.), Jun 1998. Author: D. Michael Ryan. http://www.concordma.com/magazine/june98/slaves.html.
17 <i>Concord Magazine</i> (Concord, Massachusetts.), http://www.concordma.com/magazine/augsept99/tories.html.
18 Onofrio, Jan, <i>South Carolina Biographical Dictionary</i> (North American Book Dist LLC, 2000.), Page 375.
19 Ancestry.com, Boston Births, 1700-1800 (The Generations Network, Inc.).
20 <i>Find A Grave</i>, http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=20602257.