Both Uses

WPA
in
To Kill a Mockingbird
(Edited)

If he held his mouth right, Mr. Cunningham could get a WPA job, but his land would go to ruin if he left it, and he was willing to go hungry to keep his land and vote as he pleased.
p. 23.7 *

WPA = Depression-era jobs program
The first thing was that Mr. Bob Ewell acquired and lost a job in a matter of days and probably made himself unique in the annals of the nineteen-thirties: he was the only man I ever heard of who was fired from the WPA for laziness.
p. 284.4

Definitions:

(1) (WPA)
a U.S. government program during the Great Depression (1935–1943) that hired millions of unemployed people to work on roads, buildings, parks, and other public projects

The WPA was the largest of the New Deal relief programs and affected almost every community in the United States. It offered paid work, not handouts, to people who were out of a job—such as building schools and post offices, improving roads, planting trees, and helping with rural rehabilitation projects.
The initials WPA first stood for Works Progress Administration. Later, the name was slightly changed to Work Projects Administration, but people continued to call it the WPA.
(2) (meaning too rare to warrant focus)
Less commonly, WPA can be someone's initials.