AHC: Earliest Possible Non-White British Prime Minister

[_Kali_]

Hello! Like the title says, what would be the earliest possible time for a non-white british prime minister to be elected (or rather, a party led by a non-white leader to form a government)? Non-white in this context means a person who is not a visibly white caucasian. As such, Benjamin Disraeli does not count.

 

[Analytical Engine]

Well, the first non-white MP was James Townsend (mixed race, white/black British), first elected in 1767.

James Townsend (British politician) - Wikipedia

en.wikipedia.org

So, the earliest possible is him (unless you are willing to allow a POD even further back). Whether this is actually feasible, is another matter.

The first minister was Ernest Soares (Anglo-Indian), appointed in 1910.

Ernest Soares - Wikipedia

en.wikipedia.org

Here is a list of ethnic minority British politicians:

List of ethnic minority politicians in the United Kingdom - Wikipedia

en.wikipedia.org

 

[Lalli]

Probably earlies plausible non-white PM is after WW2. Britain just was too racist society accepting non-white PM earlier.

 

[Codae]

Suppose Lord Augustus FitzRoy spent his naval career in India rather than America. Could he take a native wife without impairing the 3rd Duke of Grafton's (i.e. his son, whoever his mother) 1760s emergence as leader of the governing party? And does a half- or quarter-South Asian count as "non-white"?