This article is researched and written by Linda Coate, Ancestrees.com

This Rachel Dubois has many triangulations on chromosome 18 via her daughter's, Elizabeth and Katherine's descendants with descendants of William (a recently proved son of William, grandson of Samuel), Gentleman John (gr.s of Samuel), Daniel (grandson of Samuel), and Marmaduke Coate (grandson of Samuel) as well as no triangulations with her supposed father, Abraham Dubois (b 1657), suggesting clearly that she was fathered by Samuel Coate when he was about 28. Samuel lived in Philadelphia at that time where Rachel Dubois was married to her 3 husbands.    I believe she was born in Philadelphia instead of in Ulster Co., NY as many trees state.   Abraham Dubois' children are by no means known.   The Dubois surname could easily be her mother's surname instead. 

She first married what has been stated to be her first cousin, Isaac Dubois (this is not the case as the daughter of Samuel Coates), then a Mr. Stratton and then William Coate (the brickmaker). She had children with her other husbands. William, the brickmaker, died in 1749.  No children of Rachel and William Coates were named in her will.

Recorded Will book P, p.408. Her will is transcribed by me as follows: In the Name of God amen the Sixth day of October in the year of our Lord one thousand Seven hundred and Sixty nine I Rachel Coats Widow of William Coats late of the Northern Liberties deceased being very sick & weak in body but of perfect mind and memory thanks be given unto God for the same and calling to mind the mortality of my body and knowing that it is a appointed for all women ( ) to die do make and ordain this my last Will and Testatment, that is to say, Principally and first of all I give & recommend my Sole into the hands of God that gave it and ( ) Body recommend it to the Earth to be buried in the Christian like and decent manner at the direction of my Executors Impr( ) I do order that in the first place (mony) Just debts & funeral charges be paid and satisfied. And (reaching) much ( ) ( ) Estate wherewith it ( ) pleased God to Bless me in this life I give devise & disperse of the Same ( ) and (f ) following: That is today, In the (f ) I give and bequethed to my dearly beloved Grandson Theobald Ent along right ( ) and property of what I have at or near mount hally, but in case the aforsaid Theobald Ent doth not live to the age of one and twenty years and die without heirs then the above right and property shall come to my dearly beloved grand daughter Rachel Sahler and likewise all my household goods and furniture as bed bedding furniture and every other Individual thing or article Its my wish that after my decease my dearly beloved Grandson Joseph Hopewell shall have the sum of twenty pounds ( ) lawful money of (p ) as to be paid to him out of my estate and likewise my dearly beloved Granddaughter Sarah Miller to have the like sum of twenty pounds paid to her after all my just debts and charges be paid and in each there should not be left so much not to pay them or either of them their twenty pounds then to pay them both share alike of what there be left and I do hereby make and ordain my loving friend and Son in Law Abraham Sahler my sole executor of this my last Will and Testament ratifying and allowing this and no other to being last Will and Testament In Witness where of I have here unto set my Hand and Seal the day and year above written Rachel Coats in her last Will and Testament in the presence of Johannes G(rofs) Frederick ( ). Philadelphia May 14th 1773, Personally appeared Johannes Gross, Frederick Hesser (Shittlinesen) to the forgoing Will and on Oath did declare that they saw and heard Rachel Coats the Testatrix therein named Sign Seal and publish and declare the same Will found as her last Will and Testatment and that at the Execution thereof she was of Sound diposing Mind Memory & understanding to the best of their knowldege and Belief ( )Benjamin ( ) Reg. Genl. Be it remembered that on the 14th Day of May 1773 The last Will and Testament of Rachel Coates deceased in du form of law was proved and probate and Letters Testimentary thereof are granted To Abraham Sahler Sole Executor in the said Will named being first duty sworn well and truly to Administer the said deeds Estate and being ( ) there of into the Register Generals Office at Philadelphia ( ) before the 14th day of June next, and ( tive) amount of these Administration on or before the 15th day of May 1774 or when the( ) Legally required, Given (recorder) the Seal of the said Office .... of Benjamin (Chew) Reg. Genl. (C-2384)