There is this marriage in Manchester - register office or registrar attendedJune quarter 1857 Manchester vol 8d pg 656James Horan and Ellen HowardThere is then a birth in ManchesterGeorge Horne with mother HowardSeptember quarter 1858 Manchester 8d pg 92I can’t link any of these to 1861 censuses and there are several similar names.There is also a George Horahan b 1859 with mother Howe.Also this George at 1861 2964 /131/55George Horan 2 yrs with parents Thomas and Mary.I can’t see a marriage in Manchester to check Mary’s surname.https://www.lancashirebmd.org.uk/index.php
Wivenhoe, here are some records 1880 censusGeorge Holahan 22 yrshttps://www.familysearch.org/ark:/61903/1:1:MZ8V-R92George R Hoolahan - marriagehttps://www.familysearch.org/ark:/61903/1:1:Q2CN-94WXGeorge R - deathhttps://www.familysearch.org/ark:/61903/1:1:2WTK-BC41900 census George - immigration date 1868https://www.familysearch.org/ark:/61903/1:1:MSFD-VWP1900 Ellen and JamesEllen immigration date 1868 - James immigration date 1866https://www.familysearch.org/ark:/61903/1:1:MSF8-KQX
If this is your George he was born after the 1861 census was taken
I posted those US records for others who are trying to help. As you see wivenhoe was asking and it helps if we can see other related records.
Good finds Radcliffe.I mentioned the marriage in reply #6 and a possible birth for George with mmn Howard but as spellings vary so much it is difficult.I can’t see them as yet in 1861 and had thought they had perhaps already emigrated.However, the birth of Ann in 1864 changes that.