American Heritage Month (March) and St. Patrick's Day (March 17): 2012
...honor St. Patrick, who introduced Christianity to Ireland in the fifth century...three Shamrock Townships in Minnesota, Nebraska and Missouri had populations
https://www.census.gov/newsroom/releases/archives/facts_for_features_special_editions/cb12-ff03.html
2015 12118 FRN Comments
Redistricting Committee here in _____ County, a rural county in _____ and I am disappointed...counted inmates in a prison in the county as if they were residents of that neighborhood
https://www.census.gov/content/dam/Census/programs-surveys/decennial/2020-census/2015-12118_FRN_Comments.pdf
CB12-FF.03 Irish American Mo.doc
...da y: the township of Irishtown, Ill., several places or townships named Clover...Pennsylvania and Wisconsin) and the township of Cloverleaf, Minn. Source: 2010...honor St. Patrick, who introduced Christianity to Ireland in the fifth century...three Shamrock Townships in Minnesota, Nebraska and Missouri had populations
https://www.census.gov/newsroom/releases/pdf/cb12ff-03_irishamer.pdf