“Betrayed on this occasion and upon many other later ones”

So far as I can tell, no new evidence about Margaret Gage and her husband Gen. Thomas Gage’s secret plans came to light in the twentieth century, from either British or American sources.

In the 1940s John R. Alden examined the papers of Gen. Henry Clinton (shown here) for General Gage in America. Though he concluded that the theory of Margaret Gage’s betrayal was dead wrong, Alden acknowledged, “Henry Clinton positively asserts that Gage was betrayed on this occasion and upon many other later ones.”

Had Clinton named his commander’s wife or offered specific details about this first betrayer, Alden would surely have included that fact. But a broad complaint of betrayal is a far cry from evidence against any specific person.

In Paul Revere’s Ride, David Hackett Fischer listed Clinton among witnesses in favor of Margaret Gage being a crucial leaker. Fischer wrote:

Many British officers, including Lord Percy and General Henry Clinton, believed that General Gage was “betrayed on this occasion” by someone very dear to him. Some strongly suspected his wife.

The citation for those sentences is “Henry Clinton, note, n.d., Clinton Papers, WCL [Clements Library]; quoted in Alden, Gage, 244.”

That suggests the phase “betrayed on this occasion” came directly from an undated note in Clinton’s papers. In fact, despite the phrase “quoted in Alden,” those were actually Alden’s own words. Neither Percy, nor Clinton, nor any other army officer is on record as voicing suspicion that Margaret Gage or “someone very dear” to the commander leaked his plans.

There have been a couple of books about Clinton since Alden wrote, and the Clements Library is digitizing his papers. So it’s possible someone has found or will find more definite evidence in that source. Since Clinton didn’t arrive in Boston until May 1775, however, it wouldn’t be first-hand information.

Other material could come to light, of course. But for now, the strongest evidence pointing to Margaret Gage as the Patriots’ source is still that anecdote published by Charles Stedman back in 1794, Gen. Gage telling Percy he’d discussed the Concord expedition with “one person only.”

But why would that person be Margaret Gage?

TOMORROW: How assumptions changed.