Looking for Rose Hagerty (Became Murphy)

Hello,

I am looking for any record of the following people:

Rose Hagerty (B. March 1849 in unknown city of Ireland).  She left in 1874 to Wisconsin, USA Where she married John Murphy (B. June 4, 1849 in Cedarburg Wisconsin) around that same year.  I would love to know who Rose's parents where, and where in Ireland they lived.

John's father, Dennis Murphy (B. C 1830s) was married to an Anna Rice (Murphy) both of Ireland. I don't much else about them either except that by 1849, they were in the US where John was born. I would love to see if I could find out more about them as well, but don't have a lot to go off of.

Any help would be much appreciated!

Ty