Firstname used in USA was Delia, what is that short for?

[dathai]

So who's this ?
https://www.familysearch.org/ark:/61903/1:1:2438-4XK

[heywood]

This would be Denis and Delia in 1920 - no son Christopher
https://www.familysearch.org/ark:/61903/1:1:MJYN-NBQ

[AlanR83]

Thanks very much for this, so it looks like the US relations got it wrong and Delia was their Grandfather's mother or Stepmother.

[AlanR83]

would it say on a US marriage cert, whether Denis was married before?

[AlanR83]

The US relations did say that Denis son Christopher was orphaned, I believe this is the death record for Denis Doyle: https://www.familysearch.org/ark:/61903/1:1:QGKK-K91K

Anyone know where I could get the full death cert online for the cause of death?

[heywood]

Is that where your US relative have the family?
There is a Dennis Doyle in Lysander in 1920 but too old to be yours
https://www.familysearch.org/ark:/61903/1:1:MV99-YZX

[Dundee]

would it say on a US marriage cert, whether Denis was married before?

You can see the information included on the link given in reply #18

So who's this ?
https://www.familysearch.org/ark:/61903/1:1:2438-4XK

If Denis and Delia had been married and without children for nine years then perhaps Christopher was later adopted.

Debra 

[AlanR83]

No adoption as the reason I connected with the US relations was a close DNA match with one of them, they have come back to me today and said that Christopher Doyle was born in 1920, so I assume Delia must have been his mother

[heywood]

There is a 9 yr old Christopher Doyle here in 1930. If he was born in 1920 that would fit as he would be born after the 1920 census. He is in an institution.
If you look at parents details, his father’s was firstly written as ‘unknown’ and then amended to ‘U S’.
https://www.familysearch.org/ark:/61903/1:1:X781-T98

Here is the institution . There are other references online including YouTube.
https://www.farmingdale.edu/library/college-archives/nazareth/nazareth_trade_school.shtml

Does that fit?