Almost a year later the Alexandria Gazette, on Thursday morning August 5, 1828, had an advertisement offering:

$25 Reward/ran away from the farm of Thompson F. Mason/Fairfax County on the night of 2d instant negro/BOB. He is about 6 feet high, stout made, very black/and about 45 years of age; has a stammering in his/speech; his right leg sore. Had on when he eloped,/brown linen shirt and trowsers and took with him/blue coat, white linsey trowsers, and black fur hat-/I will give $10 for taking him so I get him again if in the County. If taken out of the County/or District of Columbia, $25./Slighter Smith, Agent for Thompson F. Mason/Fairfax County, State of Virginia/August 5.

Mr. Smith had been replaced as Overseer at Huntley by 1832 for in that year Price Skinner wrote:

... being moved to your house last friday—we are in a bad fix—I want you if you please to ride out to see what you will have don—if I was you I wood have the floor layed down with the plank not used—the whole of the cappenders work may be made in less than one day—and I ast John Parsons what the cappenders work wood be worth—he said about fourty dollars—and forty cents I believe wood be anough there is but three suns [?] worth—to lay the floor and weather bord the shed Sir you will please to ride out....[28]

Mason had already acquired Colross, in Alexandria (see Appendix A.), by 1833, for in March of that year an estimate was submitted by Thos. Beale for:

Labour and Materials, for repairs on the large Building North of the Town of Alexandria....

The estimate included plastering, painting, brickwork, erection of porches and porticos, and fencing of the property.[29] It is Colross with which Thomson F. Mason's name is normally linked. He died December 21, 1838, and was buried there.