History of State Abbreviations (US Post Office)

+4 votes
134 views
Took me awhile to figure out this was an issue but states' postal abbreviations have changed over the years. MI on an 1850 census report is almost certainly Mississippi, not Michigan, and MS was Massachusetts! Here is a page with the major changes.

https://www.peacockdata.com/support/pdzip/History-of-State-Abbreviations.pdf

Just to throw in a note for the territory I deal with a lot. Hawaii in the kingdom era (-1893) is typically K.H. in material coming from the islands, often S.I. to around 1850 or so in materials going to the islands. R.H. was rarely used in the revolutionary period (1893-98), most personal correspondence still used K.H. In the territorial period (1898-1959), T.H. was preferred on the islands though the H.T. form was used by the federal government in Washington.
in The Tree House by Ron Moore G2G6 Mach 2 (21.3k points)
Great list. Still guilty on using some of the old pre-1963 abbreviations even though I was a child of the 70's.  Mom graduated in '61 and I couldn't convince her things had changed when I was forced to write letters or thank you notes to people.  Fla, Ind and WVa are my worst offenders.

Please log in or register to answer this question.

Related questions

+24 votes
2 answers
283 views asked Sep 1, 2016 in The Tree House by Dorothy Coakley G2G6 Pilot (174k points)
+12 votes
3 answers
+3 votes
1 answer
+3 votes
1 answer
+31 votes
3 answers
306 views asked Dec 5, 2020 in Policy and Style by Dieter Lewerenz G2G Astronaut (1.2m points)
+7 votes
1 answer
171 views asked Dec 21, 2019 in The Tree House by Susan Smith G2G6 Pilot (491k points)
+3 votes
2 answers
309 views asked Oct 21, 2018 in Genealogy Help by Kathryn Morse G2G6 Mach 3 (34.6k points)
+4 votes
3 answers
+3 votes
3 answers

WikiTree  ~  About  ~  Help Help  ~  Search Person Search  ~  Surname:

disclaimer - terms - copyright

...