Have you chcked this one out? The father's name is correct. The age is some way out but people sometimes lied! And I can't see any Rose Butterfields b 1850
James McKen McManus - 40, Labourer, Widower, Park Street m Rose Ann Butterfield - 28, Spinster, Park Street 15 Feb 1878 at St Thomas Ardwick
Groom's Father: John McManus, Farmer
Bride's Father: Henry Butterfield, Farmer
Witnesses: Charles Brown; Lucy Brown
from PR Marriages 1877 - 1883, Page 30, Entry 60