I found my DH name but the address is not even a valid address here around Buffalo. He has a family name that is not very poplular so usually it is a relation. The weird thing is it is his full first name, Middle Initial and Last name.
He will not check as he says it is a scam.
Thoughts please

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Not a scam at all. We're also in NY and it's from the official NYS Comptroller's office. They sent us $38 a couple of years ago, my SIL checks with them regularly and has gotten $400 over the years.
This fact sheet might reassure him.
http://www.osc.state.ny.us/ouf/ouf_factsheet.pdf
And on their website they have links for more places to search for unclaimed funds:
"Are there other places where I can search for unclaimed funds?
Yes! Below is a list of links and contact information for other entities that handle claims for lost monies.
NY State & Local Retirement System Contact NYSLRS for information regarding lost pension benefits, uncashed retirement checks, etc.:
http://www.osc.state.ny.us/retire/contact_us/index.htm
Pension Benefit Guaranty Corporation Information about refunds on retirement accounts can be found at:
http://search.pbgc.gov/mp/mp.aspx
National Registry of Unclaimed Retirement Benefits A nationwide, secure database of retirement account balances that have been left unclaimed. Visit:
https://www.unclaimedretirementbenefits.com/
Internal Revenue Service - Contact the IRS for information on unclaimed tax refunds:
http://www.irs.ustreas.gov/
Federal Deposit Insurance Corporation (FDIC) - This site contains unclaimed funds for insured deposits or for dividend checks issued which were undeliverable or never cashed:
http://www2.fdic.gov/funds/index.asp
National Credit Union Administration When a credit union with federal insurance is liquidated NCUAs Asset Management and Assistance Center is responsible for paying the share accounts to the members. Visit:
http://www.ncua.gov/Resources/AM/Pages/UnclaimedDeposits.aspx
US Savings Bonds To find information about lost/missing savings bonds visit:
http://www.treasurydirect.gov/indiv/tools/tools_treasuryhunt.htm
Financial Management Service Information about Unclaimed Federal Money and Assets:
http://www.fms.treas.gov/faq/unclaimed.html
U.S. Department of Housing and Urban Development - If you had a HUD/FHA insured mortgage, you may have a refund on part of your insurance premium or a share of the earnings.
http://www.hud.gov/offices/hsg/comp/refunds/index.cfm
Veterans Administration Benefits - Search for unclaimed veterans benefits owed to you by the federal government:
http://www.va.gov/
U.S. Railroad Retirement Board - Search for unclaimed railroad retirement benefits:
http://www.rrb.gov/
Screen Actors Guild - You may be due residuals as a performer, loan out, or as a beneficiary/heir of a performer. Search for unclaimed residuals at SAGs unclaimed residual tracker:
http://www.sag.org/content/search-unclaimed-residuals