Biography
Birth: 1726 Death: Jul. 29, 1776 Carlisle Cumberland County Pennsylvania, USA
Revolutionary War Colonel; Cumberland County, Pennsylvania Militia. He was also a member of the Committee of Observation.
Robert Callender was one of the most extensive Indian traders in his day. He was one of twenty-three who suffered in the Bloody River affair losing all of his goods. He was captain in the Provincial Army in 1756-57 and received a land grant. He was a Colonel and Patriot in the American Revolutionary War, and a Member of the Committee of Observation.
The following information is found on page 262 of "The Pennsylvania Genealogical Magazine," Volume XXIII - Number 4, published by the Genealogical Society of Pennsylvania, 1964. Captain Robert Callender, b. ca. 1726; d. 29 July 1776, ae. 50 years; m. 1st Mary Scull, d. 1765, Issue:
i. Ann Callender, d. Philadelphia, 15 Oct 1823; m. 1770 General William Irvine, b. Ulster, Ireland, 3 Nov 1741; d. Philadelphia, 29 Jul 1804, of whom see below.
ii. Elizabeth Callender, m. Dr. John Andrews of Philadelphia [1746-1813].
iii. Isabella Callender, m. William Neill of Baltimore.
Robert Callender m. 2nd, Frances Gibbson of Carlisle, Pa. [a sister of Colonel Gibson, father of Chief Justice John Gibson] Issue;
iv. Robert Callender, Jr., d. unm. 1802 in Pittsburgh
v. Martha Callender, m. Judge Thomas Duncan, son of Stephen and Ann Duncan, for whom see below.
vi. Catharine Callender, m. Mr Nolan of Aldie, VA[1]
vii. A Daughter, name not given, m. Mr. Thompson, of Carlisle."

Captain Callender owned and improved the fine estate of Middlesex, below Carlisle, and Silver Spring, on the spring of that name.
Robert Callender also was a great land owner. In 1770 his assessments in Cumberland and Bedford counties, and in the Juniata Valley, aggregated 3,300 acres. He also at the same time owned a tract of two thousand acres lying on the east side of the Mississippi river below Natchez, in what is now the State of Mississippi, but at the time he acquired the land was yet in the Province of West Florida[2]( Folder Title: "Copy of a deed for 2000 acres below Natchez, Mississippi, granted to Robert Callender by King George III" Date: 1768 Box: FF 4)


In the book MEMORIES OF CARLISLE'S OLD GRAVEYARD: CONTAINING A LIST OF THE INSCRIPTIONS ON ALL STONES IN THE ENCLOSURE IN 1898, by Sarah Wood Parkinson, on page 65
Tombstone (an actual stone) Inscription:
Robert Callender. The testimony of a good conscience was his reward. The love and esteem of all good men his glory. On the 29th day of July, 1776 he died as he had lived, an honest man, aged 50 years
NOTE: Other tomb inscriptions listed on the same page (presumably because they were buried close to his tomb stone) are; wife Mary, granddaughter Elizabeth Neill and granddaughter Mary Irvine. Listed on the previous page is James Irvine, relative to his daughter Anne's husband.[3]