what church is samaratan's purse staying at for the illinois tornado relief

Samaritan’s Purse said its volunteers were operating out of Lena Evangelical Free Church in Lena, Illinois for the Illinois tornado response.

A related Samaritan’s Purse update also notes that one of its Disaster Relief Units arrived at Charleston First Church of God during the central Illinois response.

So, if you meant the main volunteer base, it’s Lena Evangelical Free Church.