Undated card signed by G.F. Powers & family. This was most likely the Rev. Granville Frank Powers of the Christian Church. Lena was a member of the Christian Church, and her brother Eugene was also a minister in the church.
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Post originally found: https://genealogylady.net/2015/04/05/lenas-postcards-29/
Genealogy Lady 
I like the line: whatever your outlook may be…..cheery or shadowy….