Isadore Levitan - People Conflated

There is an obit published in The Courier-Journal; on Tues, 27 Jan 1976, Publication Place: Louisville, Kentucky, USA, for an Isadore Levitan who died Sunday, survived by his wife the former Emma Gottlieb and his two daughters, Grace Levitan and Mrs. Jacob Chitlik.
These are the wife and children currently attached to this profile.

There is SSDI for Isadore Levitan born 12 Oct 1891 -- died Jan 1976 -- Last. Res. Louisville, Jefferson, Kentucky
AND a US BIRLS Death File for the same SSN and name, but with birth 12 Feb 1895 - and death 25 Jan 1976 - that is a very different birth date.
The birth date on the SSDI record matches the date currently on the profile.
For death, SSDI just gives it to the month, BIRLS gives the same month and year, and also the date, which matches the date of death from the obit,
and is one day different from the date on the Profile

There is a 1930 Census for Isadore Levitan with wife Emma G and two daughters, Grace Helen and Dalores, living in the Bronx in NY, both daughters born NY. It says he immigrated in 1915 and is Naturalized.
On the 1940 Census, the same family is living in Louisville KY