Judging by my own family, I would say that anyone from England marrying in Dublin was very likely to be in the Army.
As for your stone mason, Bath became very popular in the 18th & 19th centuries, and many buildings were erected using the local Bath stone. Lots of work for a stone mason!
Quote from Visit Bath:
During the 18th and 19th centuries Bath became a cultural centre attracting such famous people as writers Jane Austen, Oliver Goldsmith, and later Charles Dickens artist Thomas Gainsborough, poets William Wordsworth, Richard Brinsley Sheriden and Walter Savage Landor and actors David Garrick and Sarah Siddons. Bath also attracted Lord Nelson, Josiah Wedgwood, William Pitt (later Prime Minister, Lord Clive (later Governor of Bengal in India) and the explorer and missionary Dr David Livingstone.
1805 Theatre Royal opened.
1810 Kennet and Avon Canal opened. The canal connected the River Thames with the Severn Estuary and was used for the transportation of coal and other products.
1830 Princess Victoria opened Royal Victoria Park which was designed by City Architect of the time, Edward Davis. It was the first of many places in England to be named in her honour.
2nd May 1840 The first Penny Black postage stamp was sent from 8 Broad Street, Bath (now the Postal Museum).
About 1840 The canal was superseded by the Great Western Railway, built by Isambard Kingdom Brunel who also built Bath Spa Station.