Thomas Pennick married Ann Almon on 15 Mar 1769 in Baltimore Co, MD. From the Register of Births, Marriages and Deaths in St. John's and St. Georges Parrish Baltimore and Harford Counties. Vol. 1, p 258. This entry is listed under St. John's Harford Co. Register, 1769-1849.

SERVICE: Thomas Pennix served as a private in Capt. John Love's company of Harford County [Maryland] Militia in 1775.
In 1776, he was a signer of the Association of Freeman, Upper Spesutia 100 [Harford, Maryland].
He appeared on Harford County tax lists for Upper Spesutia from 1774 to 1778, but did not appear on the list for 1783.
Thomas reappeared in 1785 on the "Return of Collection made by Jno Taylor former Shff for the Rev. Mr. Wm West": Tho. Penicks 0, 4, 0.
Thomas Pinnick was listed between William and Thomas Allman on the ca. 1780 Washington Co petition for a new state.
Thomas was on the list of "Rangers on the Frontiers, 1778 -1783" for Westmoreland County, Pennsylvania.
He marched with Crawford on the ill-fated Sandusky Expedition in May of 1782.
Thomas "Pinnack" first appeared in Fallowfield Township, Washington County tax lists
in 1782-3 with one horse and one cow, and in 1784-5 was recorded in the same
township as Thomas "Pinach".
On the 1793 tax list for Fallowfield Twp, Washington Co, PA, Thomas Penick and Joseph Penick both appear;
their names appear as Thomas Pennix and Joseph Pennix in 1798.
On the 1798 Direct Tax List for Fallowfield Township, Washington County, PA,
Thomas was taxed for a dwelling house and 60 acres of property, registered to him.
Joseph was taxed for a smaller dwelling house, and 49 acres of land.
Thomas Penick received land on the waters of Pike Run and Maple Creek from Thomas "Alman" in 1805 .
The land was located in Fallowfield Twp, which is adjacent to Pike Run.