Thomas was born the son of John Beatty [of Irish descent] and Susanna Asfordby in Marbletown NY. John had married Susanna in Esopus [Kingston], New York state; in 1691. John was Sheriff of Ulster County. He moved his family to Marbletown, New York, where he served as a town Trustee. In 1719, a 700 acre tract of land was confirmed to him by the Trustees of Marbletown, indicating that he was a large landholder there. John also served as the Deputy Surveyor for the State of New York, and in that position surveyed and laid out the famous Manor of Robert Livingston. John made his will in April of 1720 and died before March 9 1721 when his will was proved.
Thomas married Maria Jansen, daughter of Thomas Jansen and Mayke Bogaardus in Kingston New York on October 23 1729. By 1733, Thomas appeared on a list of taxables in Monocacy of Frederick County Maryland. His longest residence was called "Beatty's Delight", located on the lower part of "Linganore Creek near a mile from Monocacy River."
1. Charles  +Martha Middagh, or Middaugh
2. Thomas 
3. James  +Elizabeth Raymer
4. Susanna  +Nathan Maynard 
5. Sarah  +Thomas Maynard
Thomas, along with sons Charles and Thomas Jr., were among the largest landowners in Frederick County. He served as a Court Justice from 1739 in Prince George's County Court, then from 1748 until after 1765 in Frederick County. Elected to Maryland House of Burgesses 1757, 1758. One of the "Sons of Liberty" who led the revolt against the Stamp Act in MD. His was the longest continuous service of all Justices during the Colonial period. [from "Pioneers of Old Monocacy"]
"THOMAS BEATTY..IN THE NAME OF GOD, this day of February, one thousand seven hundred and sixty years, I Thomas Beatty of Fredrick County and providence of Maryland and being sick and weak in body but of perfect mind and memory, thanks be given to God for the same, and calling to mind the mortality of my body to make and ordain this, my last will and testament.
First of all I give and bequeath my soul into the hands of Almighty, my hravenly Father, hoping for forgiveness of all my sins through the merits and intercessions of my blessed Redeemer and Savior Jesus Christ, and as touching such worldly estates wherewith it hath pleased God to bless me in this life, I give and dispose of the same in manner and form following, viz:
Imprimis. I give and bequeath to Mary, my beloved wife, two of my best horses and two of my best cows beside what the law allows her.
Item: I give and bequeath to my son Thomas Beatty the sum of two pounds current money as his birthright.
Item: My will and devise is that my son and daughter Sarah be educated in reading, writing and cyphering as far as my other children and to be paid out of my estate by my executors and furthermore my will and pleasure is that all remainder of my real and personal estate that I have any right to be equally divided between my children namely; Thomas Beatty, Charles Beatty, Susannah Maynard (wife of Nathan Maynard), James Beatty, and Barbara Beatty, their heirs and assigns forever. And if it should happen that any of my said children should die before they arrive at age of lawful heir, then his or her share shall be equally divided between them, then in such a case my will and pleasure is that Mr. Daniel Richards and Mr. John Carmack [brother of Daniel Richards' wife], both of Fredrick County; in their (his or her) place in behalf of the orphans of heirs so left in dividing my said lands, and if either or both of them should refuse to act, then it is my will and desire that they should choose two credible freeholders to act in their place, and I do hereby empower the aforsaid Daniel Richards and and John Carmack or either of them, of any person so appointed by them to act in the part and behalf of the deceased, same as if he, she, or they were themselves living to give releases or any other testament of writing which shall be necessary in law.
And lastly, I do make, constitute, and ordain my dearly beloved wife Mary and my son Charles Beatty my executors of this, my last will and testament; and I do hereby utterly disallow, revoke, and dis-annul all and every other former will or wills, bequeaths, and legacies whatsoever by me before this time made, willed, or bequeathed ratifying and confirming this and no other to be my last Will and
Testament. In witness whereof I have herunto set mt hand and seal the day and year above written.
Tho. Beatty (seal)
Signed, sealed, published, pronounced and declared by the aforesaid Thomas Beatty to be his last will and testament in presence of us.
Will made February 1768 and proved April 1769.
[Frederick County, Maryland]
HISTORICAL PROPERTY: Susanna Beatty's House 1732
Susanna Asfordby Beatty (1671 - 1740)
Charles Beatty (1730 - 1804)*
Thomas Beatty (1730 - 1815)*
Susannah Beatty Maynard (1744 - ____)*
Sarah Beatty Maynard (1756 - ____)*
Created by: Harold G. Richards
Record added: Aug 11, 2012
Find A Grave Memorial# 95162581