Francis and Mary Secor of Prague, NE

Can anyone help with information about the descendents of
Francis (Frank) and Mary Secor of Prague, Nebraska?

Francis Secor married Mary Dvorsky on 12 Jun 1882 in Johnson County, Iowa.They moved to Prague, Nebraska, where they are buried in St. John Cemetery.
Francis probably had other family members living there also.

There were five children that I know of:
1. Marie(born Dec 1888)
2. Frank(born Jun 1890)
3. Agnes(born Oct 1895)
4. Josephine (born Sep 1897)
5. Anna(born Jul 1898)

I would appreciate any information about the marriages of these children, other descendents, or the relationship of Francis to other Secors in Nebraska.

Thanks.
Rae