My grandfather, William Marion Baird (married to Rosemary Campbell) was born in Newcombe (Campbell Co.), TN on 3/14/1892 to 1895. He was also a miner and I know worked for some time in Mary Helen (Harlan Co.) KY, just north of the TN line near Chevrolet and Harlan, KY. He was there probably from around 1919 or to just before 1930. They then returned to Phila., PA where Rosemary subsequently died of breast cancer at the age of 33. They had five children; William put the four oldest in an orphanage the baby was taken by a maternal aunt to raise.
I looked up Jellico Creek; it's near Rt 92, quite close to Williamsburg, KY, just north of TN border. The town of Jellico, TN is just north of Newcomb, TN. Jellico Creek, KY is just north of Jellico, TN.
If the dates match yours, it's quite possible we're related. Please email me at firstname.lastname@example.org