Robert Taylor Smith married Lida Dunn

Looking for info on this couple. Robert Taylor Smith lived in Saline County I believe. He married Lida Dunn from Eldorado. Around 1912. Lida was very young, around 16 yrs old. I have no parents for Robert.All I know that he served in World War One, and Lida is listed as a widow, living with her parents, in 1920.
They had 2 children, Robert Arthur, born in 1913, and Thelma Virginia, born in 1914.
Lida is the daughter of George W. Dunn and Florenec Stoker. All lived in Eldorado.I believe Robert was older than Lida, maybe 21, at marriage.
Robert died between 1914-1920. I cannot find a death record, or a marriage record. Any assistance would be great!!