Making good progress... found 996000 matches between social security death index and registered voters in Michigan...

Most are false positives however. A lot of people with matching names but different people. So now I'm looking to filter by birth year as well.

Edit: After filtering by birth year (i.e. Name and birth year of dead person matches name and birth year of registered voter) we still have 241088 matches between death index and registered voters in Michigan. I suspect many of these are still false positives.

I will now try filtering by first 3 digits of SSN for people born in Michigan. This may miss out on some people (people not born in Michigan but moved there later) but will cut down on false positives.

Edit: So... I've found a list of ~77000 registered voters in Michigan with the same name and year of birth as a dead person in the Social Security Death Index Database... who also have a SSN with the first 3 digits indicating they were born in Michigan (362-386). This isn't "conclusive evidence" per se as there well may be false positives in there, but there are likely many dead voters in there. Unfortunately I can't think of any ways to filter further, considering that the voter registration data doesn't give me the birthday, only the birth year.

Here's the link to the CSV file of those people for anyone who wants to do more sleuthing - https://gofile.io/d/JckUr6 I've also compiled a CSV file of 3556 registered voters in Michigan which match the full name and birth year of a dead person, and are over 100 years old. (This includes our good friend William Bradley! - https://thedonald.win/p/11PpBIFClU/x/c/) https://gofile.io/d/hRb0hl

For those who don't trust download links I've included a hastebin link where you can view the data directly. This includes registered voters matching the name and birth year of a dead person and are over 110 years old. http://www.hastebin.net/ivirilohim.py The other files are too big to be uploaded to most paste sharing websites.

BTW all of these voter registrations are valid, I look the people up here - https://mvic.sos.state.mi.us/Voter/Index and they all come up. You don't know the exact birth month so you have to guess each month one by one. Other than that we have the birth year and zip code.