Do you have paper evidence that George died in 1935?
In researching my own family history, I have found that what people remember can be generally accurate, though fuzzy or slightly off, which complicates the act of laying your hands on a paper record, when you need precision.
Name: George H O'Keeffe
Registration District: Cork
Event Type: BIRTHS
Registration Quarter and Year: Jul - Sep 1932
Estimated Birth Year:
Age (at Death):
Mother's Maiden Name: Pritchard
Film Number: 101232
Volume Number: 5
Page Number: 99
Digital Folder Number: 4195647
Image Number: 00150
Name: George O'Keeffe
Registration District: Cork
Event Type: DEATHS
Registration Quarter and Year: Jan - Mar 1933
Estimated Birth Year: 1933
Age (at Death): 0
Mother's Maiden Name:
Film Number: 101739
Volume Number: 5
Page Number: 112
Digital Folder Number: 4202046
Image Number: 00204
https://www.familysearch.org/search/collection/show#uri=http://hr-search-api:8080/searchapi/search/collection/1408347