Alexander was the third son of Andrew and Martha Caldwell. He was born in Drumore Township, Lancaster County, Colonial Pennsylvania, in 1735. Alexander was named after Alexander Craighead, the recently arrived Presbyterian minister at Octarora Church, Lancaster County. (Caruthers, Life of Rev. David Caldwell, 1842.) When Alexander's father passed away in 1757, the Drumore farm became the inheritance of his surviving wife, Martha (one-fourth undivided interest) and three of the four sons, Alexander, Andrew, and John. The fourth, Rev. David Caldwell, had given up his right to inheritance of the Drumore farm, in exchange for financial support from his brothers for his education as a minister. Nonetheless, David's father included in his will a bequest of 40 lbs Pennsylvania currency to David, which was then enough to purchase a large farm (275+ acres) in North Carolina. Alexander became the designated head of the household, as reflected in a Drumore Township survey taken in 1759. In 1771, his brother, Rev. David Caldwell, sold him about 275 acres (through deed of lease and a deed of release, a tax dodging device commonly used in the colonies to avoid paying fees to the Colonial Government for transfer of fee title), in present day Greensboro, North Carolina. (Caldwell Famiy Newsletter, Summer, 1984, citing Deed Book 6, p. 39, Sale from Blair to David Caldwell, Register of Deeds, Rowan Co., NC; Deed of Lease, Recorded Book A1 1771, P 53-54, Guilford Co; Deed of Release, Guilford Co. Recorded Book A#55.) That was nearly as much acreage as Alexander and his brothers Andrew and John, along with his mother, had inherited in Drumore Township from his father. Alexander resided in Greensboro until his death in 1784. On his death, his farm was sold back to Rev. Caldwell by Alexander's surviving wife and children (Recorded Book 7, P 248-249, Guilford Co), who used the proceeds to move west into Greene County, then in North Carolina, now in Tennessee. All of the Colonial sales were recorded as based upon Pennsylvania currency. Rev. David Caldwell paid the owner Blair 84 lbs for 550 acreas, and sold half to Alexander for 42 lbs. When Alexander's brothers Andrew and John died childless respectively in 1808 at 74 years and in 1812 at 76 years, the Pennsylvania farm became the inheritance of Alexander's children, Margaret, Thomas, Martha Caldwell, John and Rachel Caldwell and Rachel Caldwell, all of Tennessee. (Greene Co. Court Minutes 1812-1814, p. 194.) A decision was made to use a common grave and tombstone for both Andrew and John, alongside the grave of their father, Andrew Caldwell. During the American Revolutionary War Alexander fought under General Nathaniel Greene. I do not know whether he fought in the Guilford County Courthouse Battle. His brothers Andrew and John had served in the Pennsylvania militia and were officers under the commmand of George Washington while he wintered at Valley Forge. Ironically of the four brothers, only the Rev. David Caldwell ever had a price placed on his head by the British military. In 1776, Alexander became Justice of the peace (Judge) of Guilford County Court of Pleas and Quarter Sessions. He worshipped and served as an Elder for the Buffalo Presbyterian Church. (Rankin, History of Buffalo Presbyterian Church and Her People). The location of his grave remains unverified, but likely is one among the many graves in the Buffalo Church Cemetery, Greensboro, NC, that have lost their grave markers. During the Civil War, union troops occupied Greensboro and that might have led to the cemetery being damaged. Alexander' son Samuel became a Presbyterian minister and donated land upon which was built one of the first Presbyterian churches in Greene County. Just as Andrew and Martha Caldwell were among the first white settlers of Drumore Township, Pennsylvania, Alexander's children were among the first white settlers of Tennessee. Samuel Caldwell was instrumental in persuading evangelistic Presbyterian ministers to locate to Tennessee who were graduates of Rev. David Caldwell's Log College.