Why did Schorarie County NY vote D from 1884 to 1916

[lfromnj]

?
https://en.wikipedia.org/wiki/Schoharie_County,_New_York#Politics

It was the only upstate county to vote consistently  D but then it just stopped after 1920 and didnt even vote for FDR, it only voted for LBJ in his sweep and Bill clinton in his near sweep in 96.

[Calthrina950]

According to Kevin Phillips' The Emerging Republican Majority, Schoharie County was part of the "non-Yankee Northeast", which were rural and exurban counties in the Northeastern States that were traditionally Democratic prior to the 1960s (and in many respects, the 1920s). German, Dutch, and Scotch-Irish voters throughout that region, particularly in New York and Pennsylvania, were strongly loyal to the Democratic Party of Thomas Jefferson and Andrew Jackson, and were directly opposed to the interests of the Yankees (White Anglo-Saxon Protestants), who were major supporters of the Federalists, Whigs, and eventually the Republicans.

Schoharie County, which was initially settled by Germans, was thus loyal to the Democrats under that paradigm. Philips explains that it broke from the Democrats because of the increasing influence held by urban Catholics over the Party's operations, and the subsequent transformation into the New Deal Coalition.