Query: Rush/Long of Pulaski County

I am desperately searching for information on this family, who were last known to be in Pulaski County, Indiana:

1) Catherine Seybert Rush--born ?1847?
2) George Seybert Rush--born March 1879
3) Rebecca (Long) Rush (wife of George Seybert Rush)--born 1887
4) Sarah Rush (believed to be the daughter of George Seybert Rush)--born July 1909

I would appreciate any information/records on any and all of these people--they are my great-grandmother, and grandfather, and grandmother and great-aunt, and I have hit a steel wall!

Donna Rush Moore
2101 McCaskey Rd.
Williamston, NC 27892
drmnc@earthlink.net