Yondering was created in 1980.
When The Roll Is Called Up Yonder was created in 1893.
Shakespeare would disagree with categorizing this phrase as redneck. "What light through yonder window breaks"? Yonder is a reference to something in the distance. Down is the direction indicated. So, down yonder means something off in the distance in the direction indicated. This isn't an idiom or slang. It is literal. Even a redneck knows that.
see in yonder manger low
The Christmas song is "Away in a Manger."
"way down yonder in the paw paw patch
Down Yonder was created in 1921.
Yonder - comics - was created in 2008-11.
Way Out Yonder was created in 2005-10.
Wide Blue Yonder was created in 1987.
The Blue Yonder was created on 1985-11-17.
Yonder Is the Clock was created on 2009-04-07.
A Year Down Yonder was created in 2000-10.
Into the Great Wide Yonder was created on 2010-05-28.
The Wild Blue Yonder was created on 2005-09-05.
Swingin' Down Yonder was created on 1954-09-30.
Way Down Yonder was created on 1974-01-01.
When The Roll Is Called Up Yonder was created in 1893.