I used to work in a Department store in Chicago.
I use to--but I don't anymore.
I worked at the Hosiery counter.
I use to--but I don't any more.
One day a lady wanted some garters
And I asked her what kind she wore,
She said rubber-and rubber I did.
I used to--but I don't any more.

October 1, 1921, Holstein-Friesian World

See here: https://www.google.com/books/edition/Holstein_Friesian_World/zKQTtX0XgGcC?hl=en&gbpv=1&dq=used+to+work+in++i+dont+anymore&pg=RA3-PA90&printsec=frontcover