Can't spot the marriage, nor can I spot an Ellen Loftus marrying Patrick Murphy.
I can see a Winefred Loftus who is a 20 yr old servant b. Ireland in Wolverhampton in 1861 - but there's no way of knowing if she's your one!
Can't spot Thomas or Patrick Loftus in earlier censuses
Anyway wasn't sure if you had them in 1891
Alcaster Street, Aston, Birmingham
Patrick Lawless, 50 , wire netting(?) maker, b.Ireland
Winefred, 48, Ireland
Mary, dtr, 21, lacquerer, b. B'ham
Thomas, son, 21, brass cabinet maker, b. B'ham
George Jones, 2, grandson, B'ham.
and in 1901
Cheapside, Aston, Birmingham
Patrick Lawless, 64, dipper of brass/wireworker, Ireland
Winifred, 63, Ireland
Ellen Downey, dtr, wid, 36, press tool maker, B'ham
Mary Lawless, 31, brass knob lacquerer, B'ham
Thomas Lawless, 29, brass worker, shop fittings, B'ham
George Jones, 12, grandson, B'ham
Winifred Jones, 10, g'dtr, B'ham
What a shame that there's no Irish county mentioned to give you some more clue to their origins.
Not sure what else to look for.
If you look on freeBMD you can see the probable deaths of Thomas & Ellen Lawless.
good luck
Louise