Tracey,
[Back on topic now]
I suddenly thought to look up Huddersfield in the Gazetteer. Mr. Bartholomew says (shout if you can't follow the abbreviations):
Huddersfield, parl. and co. bor. and par., with ry. sta., L.M.S., S. div W. R. Yorks, 16.5 m. SW. of Leeds, 25.75 m. NE. of Manchester and 189 m. NW. of London; parl and co. bor., 14,288 ac., pop 125,000; par., 4055 ac., pop. 51,655; eccl. dists. (Holy Trinity), 6468; (St. Andrew), 4683; (St. John), 10,728, (St. Mark), 3550; (St. Paul), 4819; (St. Peter), 4840; (St. Thomas), 4279. Huddersfield is the chief centre of the branch of mfr. known as the fancy woollen trade, but every description of plain and fancy woollen goods is manufactured.
The population figures are from the 1951 Census. The rest of the info is probably much older.
What made me think to check was that you wrote "St. Mark's Church in the Parish of St. Mark's". Usually, churches are named after saints but parishes are named after places.
If you look on the Wakefield diocese web site, it says that the Parish of Longwood is now in the Rural Deanery of Huddersfield, which roughly corresponds to the old Parish of Huddersfield. So I reckon it is the right St. Mark's.
I bet you will find that your g-g-grandmother lived in Longwood, as marriages are always xxxxxx usually held in the bride's parish.
Jon