Here are accounts from two different sources that seem to agree with one another but disagree with what you received from Mrs. Weller's book.
Transcribed from “Ancestral Records” by C. Wesley Armor
Printed by the press of Lyon and Armor, Inc.
Philadelphia, Pennsylvania 1971
The Barrick Family
I. William Barrick (Barrack), who died in 1750 on his Plantation of 125 acres, Part of Monocacy Manor Park, situated in Frederick County, Maryland, was the Great-Great-Great-Great-Grandfather of Charles Wesley Armor of Philadelphia, Pennsylvania.
William Barrick left a Will dated June 30, 1750, prob. July 27, 1750, in which he states he is of Frederick County, Maryland, and in which he leaves the Land, “I now live on,” to be divided equally between his sons Handeal Barrack and William Barrack; Handeal to keep Tract “he now lives on,” and William to keep Part “I now live on.”He names as his Executors, his sons, John Barrick and Peter Barrack.Daughters are also named.He does not name his Wife, who evidently died before date the Will was made.
It is proven by the above Will that each one of his sons was of adult age, and therefore, all of age to take part in War.And each of the above named sons of William Barrick (Barrack) did serve as soldiers in the French and Indian War, and they and their sons are also named in the List of Associators in 1775, 1776, in the Report Journal of the Committee of Observation of the Middle District of Frederick County, Maryland, September 12, 1775 – October 24, 1776; viz: (see “SERVICE RECORDS”).
William Barrick (Barrack) who served in the French and Indian War in 1758 and who with his sons, Jacob Barrick, George Barrick and William Barrick are on the list of Associators, September 12 1775 – October 24 1776, Frederick County, Maryland, was the Great-great-great-grandfather, on his maternal side of the house, of Charles Wesley Armor of Philadelpia, Pennsylvania.
II William Barrick (Barrack) died in 1791 on his Plantation on Part of Monocacy Park, in Frederick County MD which he had inherited from his father, William Barrick, at his death in 1750.
William Barrick left a Will dated April 20, 1791, prob. May 19, 1791 (Liber G.M. #2, folio 378 Frederick Co MD WILLS).In his will he names his Wife, Catharine, his daughter, Catharine DeVilbiss, his son-in-law, Adam DeVilbiss, his sons Jacob Barrick, George Barrick, Michael Barrick and William Barrick (who married May 22, 1778 Catherine Heartsock) and names daughters, Mary, Susannah and Sarah.
Transcribed from book “History of Carrolton County 1928” by Grove pp 362
A List of Money Lent George Scott for use of the State of Maryland during the Revolution:
Frederick County Men Who Subscribed:
June 20, 1780
Mr. William Barwick (Barrick) - ?500
Mr. George DeVilbiss - ?900
Mr. Handel Barwick (Barrick) - ? 1,000
Mr. John Barwick (Barrick) - ?6,000
George DeVilbiss, one of the above Frederick County men who loaned money to the State of Maryland to assist with expenses of the American Revolution, died in 1785, leaving a Will, in which he names his Wife Hannah (Anna Catherine Stull) and 7 children, to whom he leaves his Estate to be divided equally amongst them.He leaves a number of slaves, also to his Wife and his sons, Adam DeVilbiss, George DeVilbiss, and John DeVilbiss, and also to Jacob Barrick who was the brother-in-law of his son Adam DeVilbiss.His farm was located about two miles from where the GBattle of Monocacy took place in 1864.He signed his Will with a peculiar mark.
William Barrick (son of William Barrick) a Frederick County man who loaned money at this time died in 1791 leaving a Will in which he leaves his “Lease Land upon which I now live, being part of Monocacy Manor, containing 125 acres” to his Wife Catherine.He leaves other lands to her and to his children, namely, Jacob Barrick, George Barrick, Mary Barrick, Catharine DeVilbiss, William Barrick, Junr, Susannah Barrick, Michael Barrick and Sarah Barrick and appoints “My Well-Beloved son, Jacob Barrick, My Whole and Sole Executors.”He was the son of William Barrick, who died in Frederick County in 1750 on his Plantation, Part of Monocacy Manor Park.He left a Will in which he names his sons Handeal Barrick, William Barrick, John Barrick and Peter Barrick to whom he leaves a considerable Estate and land.
The Barrick Family of Frederick County Maryland was one of prominence and wealth as the records of their Estates reveal.They were foremost in patriotism, and supported the cause of their Country not only with their wealth but also gave their active service, both in the French and Indian War and in the Revolution and subsequent wars in which our Country has engaged.”