I agree with those who point out this name was more masculine than feminine in the USA before the 20th century. One of the poems in the famous book "Spoon River Anthology" by Edgar Lee Masters, published in 1915, is about a man named Selah. Since the poems in the book are said to be what people's real epitaphs in cemeteries should look like, Masters meant the judge mentioned in the poem to be born sometime in the 19th century.https://www.bartleby.com/84/94.html
https://www.bartleby.com/84/94.html