On the death of his elder brother Colonel Thomas Frederick Mackenzie Humberston in 1783, Mackenzie became the last male heir of the attainted Earls of Seaforth.
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Francis's four legitimate sons all predeceased him as predicted by the Brahan Seer.
Francis Bacon | Francis I of France | Francis Ford Coppola | Pope Francis | Connie Francis | Francis I | Francis Poulenc | Francis of Assisi | Francis Drake | Richard Francis Burton | William Lyon Mackenzie King | Francis II, Holy Roman Emperor | Francis | Mackenzie River | Francis Xavier | James Francis Edward Stuart | Francis Scott Key | Alexander Mackenzie | St. Francis Xavier University | Francis Crick | Francis I, Holy Roman Emperor | Francis Galton | Francis Toye | Francis II | Francis Fukuyama | Francis Collins | Francis Rawdon-Hastings, 1st Marquess of Hastings | Arlene Francis | Taylor & Francis | St. Francis |
While the first meteorological observation post was in a nearby private house, a meteorological observation station (Serbian Meteorološka opservatorija) building was built in 1891 by architect Dimitrije T. Leko, on Vračar's plateau, in Savinac (recognized also as Englezovac, named after Francis Mackenzie).