Barbara Bushman erroneously listed as having died in 2010. She's ALIVE.

Barbara Bushman (IMDb: https://www.imdb.com/name/nm1513487/) is listed as having died in February 2010 in England.

I have twice tried to submit this correction to remove this information, as she is still alive (as of June 2021) and resident in L.A. The second submission was done via IMDb after I emailed them complaining that the first request said "rejected" due to being "unable to verify".

Here's my evidence:
1) The New York Times obituary (https://www.nytimes.com/2011/12/08/arts/television/harry-morgan-mash-and-dragnet-actor-dies-at-96.html) for Bushman's husband, actor Harry Morgan, from late 2011, specifically states that Bushman survived him, so she couldn't have died in early 2010.
2) Sites with current (or recent) U.S. residency records list her as being alive and based in California. e.g. Spokeo.com, if you search "Barbara Quine Morgan" (note: her first husband was director Richard Quine) you get a result for "Barbara B. Quine Morgan, 95, resides in Los Angeles, CA". These sites are free and easy to use and IMDb's researchers can surely tap this in themselves to discover she's alive.
3) There is absolutely no evidence that there was ever a link between Bushman and Sutton-on-Sea, Lincolnshire, England. The death records in the GRO Index for England and Wales actually list a different year of birth for the individual who died in Feb 2010, so it isn't her.
4) The only "evidence" I can see which supports the idea that she died in England in February 2010 is a FindAGrave page (here: https://www.findagrave.com/memorial/167377440/marcella-barbara-morgan). I have contacted the author of it. They cite her IMDb page as their source! So there is no evidence to support this Feb 2010 date.

Please can somebody help me get this information removed? It's VERY annoying that IMDb have twice refused to remove it given that I've provided a suitable amount of evidence that it's false. They can also check residential records themselves. It's irresponsible and potentially hurtful and damaging to family and friends of the individual concerned to keep such false information up.

Thanks,
James