Trivial Trivia - taking trivia to new levels

[Anita]

The painter Miner Kilbourne Kellogg. Wow Susan, I had to really dig for this.

Found the answer in "The Lincoln Family Album" by Mark E. Nealy Jr. and Harold Holtzer where it states the following:
Margaret Todd Kellogg was a half sister of Mary Todd Lincoln. Margaret was married to Charles Kellogg and his brother was Miner Kilbourne Kellogg. When Lincoln was President Margaret wanted a foreign assignment for Charles so he could be closer to his brother who was working in Europe. Mary thought it preposterous as she opposed Lincoln's election but "Lincoln consoled him with an army job."