Hi Patrick
I don’t have a vast amount of information on him. My link with him is via his son Thomas Fitzgerald born 8 May 1728, baptised 19 May 1728 Baptism Place St James, Piccadilly (St James, Westminster), London, Westminster, England. Parents are Gerett and Mary Fitzgerald. I am not so far aware of any other children.
I have no record of a marriage between Garrett Fitzgerald and Mary prior to when Thomas was born in 1728. There is a marriage 17 Apr 1749 to a Mary Stilinfleet in London. Mary Gower married Daniel Stillingfleet (AKA Stilinfleet or Stillingfleet or Stillingfloat) 10 Dec 1716 in London. It is therefore possible that Garrett remarried or maybe he had a son who I have not found so far!
Mary Stilinflint maiden name was Gower she was baptised 3 Apr 1693 St Margaret Pattens, City of London.
You have indicated “She (or they) were living in Covent Garden, Charles street. County of Middlesex.” I have no record of Charles street, do you have any documents regarding Charles Street?
Westminster to Covent Garden is about 1.1 Miles and to Piccadilly is about 0.8 miles as the crow flies, therefore it is a possibility that we MAY be researching the same person.
Regards
Les