In many cities, and even small towns, there is usually a small frame house with a neon light in the window advertising psychic services. Invite her over.
Obviously you can call 1-800-GHOSTBUSTERS, or bring in the that guy from television who communicates with the deceased, but both of these options are cost prohibitive.
There is always the yard excavation option, but be sure to bring the body (s) to a local coroner to determine the cause of death.
US Stigmatized Property Laws: Most states do not have a law to disclose that a property is stigmatized. Three state have law to disclose events within one to three years of the purchase date. 15 states have a law that only if the buyer asks and seller knows they are to disclose. The remaining 32 states have no law, therefore no legal action can be taken against anyone for deliberately not disclosing. Such as with Janet Millikenâ€™s home in Pennsylvania (covered by ABCNews.com) or Brain Betts home in Maryland.
If you are in the process of buying or renting a home you can now ask for a Diedinhouse.com report before you sign.
If you need to search, I suggest the microfilm at the Library. Ask neighbors. Ask the little girl.
Good luck and may God bless
The neighbors is a good choice as is Google. You can search the address to see what shows up in public records.
I hope the girl is at peace!