Hello!
I have McMullens who arrive from Indiana (Henry, Wayne, St Joseph Counties) about the same time.
Otho and family arrive in 1869. His father came from Virginia before that and it is thought his parents came from Maryland. It is also thought he had a brother Robert and his father had a brother Robert.

Would like to talk to you further and share notes.
Robin McMullen Landgren
Dlandgren@aol.com