Sentence:  Although the <WSD>proprietarians</WSD> lost seats, the 1742 election opened a season of political détente between the warring factions. The governor finally got his lazaretto, and legislators even compromised on compensating Thomas Graeme, ... 
Meaning of the word marked with <WSD> tags:  A proponent of proprietarianism, that is, of proprietary colonies and proprietary government in colonial America.