In 1839, Isaac, son of Solomon, a mechanic from Edgworth
was a widower when he married Sarah Smith. He was NOT in Montgomery, PA - That is another.
About 1840, Isaac and Sarah (nee Smith) moved to the USA. Daughter Mary was buried there in 1840.
In 1851, Isaac and Sarah (both 37) are at Southbridge, Worcester, Massachusetts, USA with William H (8), Elisabeth (6), James A (4), and Susannah (2).
In 1870, Isaac and Sarah (60 & 54) are at Warwick, Kent, Rhode Island.
In 1880, Isaac and Sarah (69 & 63) were at Warrick, Kent, Rhode Island. This Sarah was his third wife, married in Bolton in 1839.
Isaac from Edgworth has been reported by some as born 27 Oct 1799 (this is an error), died 1898 (aged 99) who married three times, the last marriage being Sarah Langford (also wrong), before they emigrated to the USA. This Isaac was already in the US by 1850, and was actually born 1812, which explains why he was so fit at 99. Sarah Langford actually married Morgan Pender in Q3/1838, while another Isaac Mathers married Esther Kershaw, both at Manchester.