More effective to post what you do have -- be flexible on reported dates of birth, let the documents lead the way
1871 Name: Paterick McGrath Age: 37 Estimated Birth Year: abt 1834 Relation: Head Spouse's Name: Betsy McGrath Gender: Male Where born: Limerick, Ireland Civil parish: St Anne Limehouse County/Island: London Country: England Registration district: Stepney Sub-registration district: Limehouse ED, institution, or vessel: 20 Household schedule number: 136 Piece: 551 Folio: 166 Page Number: 26 Household Members: Name Age Paterick McGrath37Lim IRe Betsy McGrath 35ditto John McGrath 16St GEO Middlesex Norah McGrath 7Poplar Middlesex Thomas McGrath 13Greenwich? Kent
1861 - looking around ... in Kent, see Tom's place of birth
Name: Patrick McGrath Age: 28 Estimated Birth Year: abt 1833 Relation: Soldier Gender: Male Where born: Ireland Civil parish: Woolwich Ecclesiastical parish: St Mary Town: Woolwich County/Island: Kent Country: England Registration district: Greenwich Sub-registration district: Woolwich Dockyard ED, institution, or vessel: Royal Artillery Barracks
I see a nicely aged John McG living with an older couple "boarder" ...
But you have discarded Pat McG in the 1881 census - since James reports being born in the US on his marriage cert?
You don't have James in 1880 or 1900?
I'm wondering if he really was born in Maine?No sign of McGrath's in the US 1880 census ... wait -- you noted on the original of that marriage cert, James says father Patrick born in BANGOR and Mother Betsy, born HOLTON (Houlton) Maine ... ?
Looking at his enlistment record - residence **Bangor in 1903**; born Sherman Maine, b 1875 earch.ancestry.com/iexec?htx=View&r=an&dbid=1198&iid=MIUSA1798_102917-00173&fn=James&ln=Mcgrath&st=d&ssrc=&pid=1093080
Maybe this is his brother Tom - the only one born in Kent
Name: Thomas Davenport McGrath Date of Registration: Oct-Nov-Dec 1857 Registration district: Dover Inferred County: Kent Volume: 2a Page: 677 (click to see others on page)
Tom in Bangor - 1900?
Name: Thomas Mcgrath [Thomas Mc Grath] Age: 42 Birth Date: Aug 1857 Birthplace: England Home in 1900: Bangor, Penobscot, Maine [Penobscot] Race: White Gender: Male Immigration Year: **1889 Relation to Head of House: Head Marital Status: Married Spouse's Name: Mary Mcgrath Marriage Year: 1877 Years Married: 23 Father's Birthplace: Ireland Mother's Birthplace: Ireland Occupation: View on Image Neighbors: View others on page Household Members: Name Age Thomas Mcgrath 42ENG Mary Mcgrath 38IRe John Mcgrath 21ENG (big gap in children; 2nd marriage?) Thomas Mcgrath 14ENG Ellen Mcgrath 13ENG Sadie Mcgrath 12Maine all the rest Frank Mcgrath 9 Catherine Mcgrath 8 James Mcgrath 7 Mary Mcgrath 5 Florence Mcgrath 2 Mildred I Mcgrath 1/12
Name: Thomas Mc Grath [Thomas Mcgrath] Age in 1910: 53 Birth Year: abt 1857  Birthplace: Ireland Home in 1910: Bangor Ward 1, Penobscot, Maine Race: White Gender: Male Immigration Year: 1868 Relation to Head of House: Self (Head) [Head] Marital Status: Married Spouse's Name: Mary Mcgrath Father's Birthplace: Ireland Mother's Birthplace: Ireland Neighbors: View others on page Household Members: Name Age Thomas Mc Grath 53 Mary Mcgrath 48 John Mcgrath 30 Frank Mcgrath 20 James Mcgrath 16 Mary Mcgrath 15 Florence Mcgrath 11 Mildred Mcgrath 9