Portrait is a family heirloom owned by Sallie Thomas, a relative of First Lady Sarah Childress Polk. We're not sure exactly who the children in the portrait are other than that they were also part of the extended Childress family. The portrait is quite large and hangs on the wall in a large ornate frame so we haven't taken it down and haven't seen the back of it. Portrait was appraised in 1970 for $25,000 and the artist was identified in the appraisal as Henry Inman (copy of appraisal attached). There are some notes from family members that may have additional info but we haven't been able to sort through them in any organized fashion yet.
Portrait not including frame is about 50 inches by 40 inches.