Mary Elizabeth Conlan marriage to Thomas Micheal Sullivan mid 1800's

Hello,

I am having a hard time with researching 2 family members that were born in Ireland. I am not sure if they were married before emmigrating or after arrival in the US. I also have almost no information on either one or their parents. If anyone has any information, I would greatly appreciate it. As best we can tell, they came from Meath area, but not 100% sure.

Mary Elizabeth Conlan. Estimated birth is 1851, but also found baptism records from Meath, 14 Mar 1847. I have her arrival in US in 1867 and her death 20 Apr 1893 in Ohio. I have her with 10 children, all born in Ohio.

Thomas Micheal Sullivan, estimated birth in 1848. Not sure of when he emmigrated to US, but his death is 19 Jan 1904.

If anyone can help provide some light on either of these 2, and their family, I would greatly appreciate it.

Thanks.

Shawn