The subscription site Roots Ireland has a February 26 1886 baptismal record for a Margaret Lardner with father Patrick Lardner and mother named Honoria (no last name shown). The sponsors were John and Bridget Kelly. I could not locate a civil record.
The family lived in Castlelambert a 588 acre townland in Athenry civil parish. I was not able to locate the marriage record. Margaret had a number of older siblings Mary 1869 Julia 1872 Bridget 1875 Patrick 1878 Honor 1881 It appears the maiden name for Honoria was Ruane or a variant of Ruane.
Patrick Lardner died in 1902 see third record
I did not find a death record for Honoria.