The Manchester and Lancashire Family History Society have a number of resources available on their website that are free to search. One of these is the Catholic Register Index and is described as “An index to persons named in a number of Roman Catholic registers which have been transcribed and/or indexed by the Society’s Irish Ancestry Branch.”
A search for Buggy showed the following entries:[1]
1847 Baptism Buggy Margaret
Godmother of Mary Stapleton at Manchester, St. Wilfrid, Hulme
1858 Baptism Buggy Helena
Godmother of Gulielmus Magee at Manchester, St. Wilfrid, Hulme
1870 Baptism Buggy Ellen
Godmother of James Magee of Manchester, St. Wilfrid, Hulme
1880 Marriage Buggy Thomas
Witness to Marriage of Petrum Fitzsimmons and Margaritam Motely at Manchester, St. Wilfrid, Hulme
You can search this and other data sets here:
[1] “MLFHS Catholic Register Index Search Results”, database, mlfhs.org.uk (http://www.mlfhs.org.uk : accessed 21 March 2012), entry for Buggy, 1847-1880; citing Roman Catholic Parish Registers for St. Wilfrid Parish Manchester England