Humfrey

[ARobbins]

Hi there, newbie here.
I am looking for Henry Humfrey who I think was born 11th April 1757. Died 1st May 1843. – married & without issue, by his will leaving his estates in the counties of Wicklow, Kings County, counties of Louth Kildare & city of Dublin to his relative Alexander Humfrey of Temple Street Dublin Esquire son of William Humfrey late of Carlow for his life with remainder to his brother Benjamin Geale Humfrey. I got this from a handwritten note by my 2nd great grandmother Caroline Roe.
Alexander was her direct ancestor (and therefore mine), I am trying to find out what Henry's relationship was to Alexander, and any other information about Henry's ancestors if possible. There are some sketchy details in the note, which she says she copied from a book written by Henry Humfrey.

Many thanks in anticipation.