How can I locate these properties?

Back in the 1930s my grandfather purchased mineral rights for 40 lots in Oklahoma County Oklahoma. All deeds are for lots within a subdivision. One example is a deed that lists “Lots 19 and 20, Block 1, Phillips &Meade / East Side Addition”. Oklahoma County data base doesn’t seem to use this type of property description. To my knowledge none of these that we own have ever been leased so I’m guessing it’s probably not a very productive area. But I sure would like to try to figure this out.

Try this source:

https://www.blockandlot.org/ok-oklahoma-county/

You might start with this site: WP50 Oklahoma County Assessor Default Search Page You can search plats here: (Oklahoma County Clerk - Welcome)

Looks like the on eyou described is in SE/4 34-12N-3W: Unofficial Plat

Notice: Informational only. No attorney-client relationship is formed by this post. I am an Oklahoma-licensed attorney, but this is not legal advice. Do not share confidential facts in this public space.

I found the neighboring properties: The described properties would be between 3rd Street and 4th Street just West of present day Blakeney Pl, possibly in an industrial or drilling site just West of the railroad track..

https://www.okcc.online/Plats.php?p=27472