The 100th anniversary of Fort Kearney was commemorated in 1948 with this stamp
|USA 22 September 1948|
As 'Guardian of the Pioneer' in Nebraska Fort Kearney was. in the blurb on the US Stamp Gallery, an important post protecting settlers from Indian raiders.
27 April 1949 saw the issue of a stamp for the first gubernatorial election in Puerto Rico.
It depicts a Puerto Rican farmer, a cogwheel and a ballot box. Puerto Rico had been ceded to the US in 1898 as a result of the Spanish-American war.
A man who distinguished himself in that Spanish-American war was
|USA - General John J Pershing|
The stamp was issued on 17 November 1961. Pershing was America's WWI most celebrated hero having commanded the American Expeditionary Forces in 1917.
There is a bonus 'P' with that Portland Oregon postmark.
For other 'P' related stamps visit Sunday-stamps-p.