My interest is in the Qualtrough connection with this Costain family.

A Costain family tree came into my possession recently and on it I noted 3 different Qualtroughs marrying into the family. The Costain family concerned was the lineage of that of Ballachrink Farm in Arbory.

1. Isabel Qualtrough (died between 1865 & 1869) married William Costain 1836-1909(known as Billy/Harry I think)whose parentage is not known. His 2nd wife was Elizabeth Cregeen Isabel and William had three children.... Main query is .. which Isabel Qualtrough is this?

Emily Costain bn 1862 who married T Brew and had children Isabel (married Harry Costain) and Robert.

William Henry Costain bn 1864 poss. died in 1865

Thomas Walter 1865 - 1865.

Would like any information with descendants of this family.... ie descendants of Isabel Brew/Costain and Robert Costain.

2. Richard Qualtrough who married Margaret Costain d/o William Costain (1736-1802) and Jane Harrison

Children of this couple were Thomas, Henry, Jane, Richard, Margaret, Richard, Elizabeth, William and Ann, all Qualtroughs of course.

While much is already known on this family, any further information about descandents would be most welcome.Thank you

3. J Qualtrough (no information on who she is) married Edward Costain (born 1807) s/o John Costain and Jane Costain

Children were
Ambrose b 1868, Emma b 1870, Arthur, Caesar bn c 1872, Eden bn 1874, and possibly Caroline Jane
Contact with descendants wanted.

Thank you

Elizabeth, Australia.