Find out about the name otrainor?

Question

it was change to trainor

Answer 1

The Mormons have the biggest free collection of genealogy data on the Internet. They have just one O'Trainor. He's near  the bottom of this census entry:

Name  Relation Marital Status Gender Race Age Birthplace Occupation Father's Birthplace Mother's Birthplace

Patrick MCGRATH   Self   M   Male   W   35   IRE   Works Iron Fndry   IRE   IRE  

Elizabeth MCGRATH   Wife   M   Female   W   30   IRE   Keeping House   IRE   IRE  

James MCGRATH   Son   S   Male   W   4   PA      IRE   IRE  

Thomas MCGRATH   Other   S   Male   W   2   PA      IRE   IRE  

Ellen MCGRATH   Mother   W   Female   W   80   IRE   At Home   IRE   IRE  

Henry O'TRAINOR   Other   S   Male   W   30   IRE   Blacksmith Help   IRE   IRE  

Dennis MCCROSSIN   Other   S   Male   W   29   IRE   Steam Hammer Mfg   IRE   IRE  

Edwd. MCCROSSIN   Other   S   Male   W   22   IRE   Steam Hammer Mfg   IRE   IRE  

George DALY   Other   S   Male   W   35   SCOT   Moulder   SCOT   SCOT  

--------------------------------------...

Source Information:

  Census Place Philadelphia, Philadelphia, Pennsylvania

  Family History Library Film   1255175

  NA Film Number   T9-1175

  Page Number   176B        

(This entry conjures up an image of red-headed guys with arms like tree trunks, united by their disdain for the English. They probably went out for beer at the end of the day and made jokes about them.)

I can't find it anywhere else, which suggests to me that it was something else in Ireland, got garbled and then shortened.

Sorry.