I am also looking for Brennan's in Danbury. I just found out that my husband's grandfather was William Patrick Brennan and not William T. Brennan as was listed on his wife's death certificate. I wonder if our Brennan's may be related or the same family? Our William Patrick Brennan married Mabel Louella Wilcox and they had 4 children - Ernest W., James, Raymond J. and Jeanette. Our William was probably born in the 1880's and we know he was injured in "the war" (not sure if WW1 or WW2). He died in a VA Hospital around Christmas time but not sure of the year.