Hello 2nd cousin! First, your grandfather's name was Perry Artemus Lineberry, not Arthur. His sister, Etta, was my grandmother. Please contact me directly as follows:firstname.lastname@example.org
I have the news articles from the Mattoon Journal-Gazette reporting the accident that killed your grandfather in January of 1946 as well as his obit.
Perry Artemus Lineberry was born 4/18/1885. the third child and first male child of Dewitt Monroe Lineberry and Rachael Leander Dobbs. He married Florence Mary Reed on 6/25/1905 and had seven children.
I can give you all sorts of data on your ancestry, particularly the Lineberry and Dobbs lines. What I don't have is data on Uncle Art's family. If you were around Mattoon back in the early1960's when Aunt Bertha, Uncle Orville, Uncle Bert and my grandma (Etta) died, we had a Lineberry family reunion nearly every year at the funerals. I probably met you if you were there.
Most of my data on the Lineberrys came from Aunt Bertha's grandson, Kenneth Easton. Also, Rose Lineberry, the grand-daugher-in-law of Uncle Orville has been doing genealogy research on the family. She's changed her email address and I've lost contact with her. I see that Jalene has responded to your message as well. She is descended from Uncle Bert, but is very young and never knew any of them.
I look forward to hearing from you and exchanging information.