1871 census (transcription): James Maguire, 40, born Ireland; wife Janet, 40; children Helen, 17; Catherine, 14; James, 12; Jessie, 10; Ann, 8; Thomas, 5; and Margaret, 2.
1861 census (transcription): James Maguire, 32, born Ireland; wife Janet, 31; children John Wallace, 12; Helen, 8; Catherine, 5; James, 2; Jessie, under 1 year.
See screenshot for birth registrations of the post-1855 children. Pity none was born in 1855 as the birth certificate just might have said where in Ireland James was born.