Thank you Donna - yes, the 1878 MI is the s/o the TA Corlett of my query. I did not have this MI and am grateful to you.

It would appear then, Thomas Arthur Corlett b. 1826 and living in Edinburgh at the time of his wife's death, did not return to the IOM - or -perhaps no MI was recorded. I will have to do further checking I guess.

The burial records for the 2 other TA Corletts, I did have.