Remember, this trial was 100 years ago. FRANK PETER LANDRETH was a son of ELI LANDRETH & MARY ELIZABETH PHILLIPS. He had a sister ELLEN FLUVANNA LANDRETH who married JOHN S. BLACKMORE. He and Ellen had a daughter GERTIE BLACKMORE. ELLEN FLUVANNA later married GEORGE H. PRICE making GERTIE his step-daughter. The 1900 census shows FRANK PETER LANDRETH in Ringgold Co IA.
I think this gives enough information to identify most of the people involved.