We will leave behind the 19th century and look at these recent times of trial and tribulation (1965 through 2016). In looking at this data, I found something interesting and troubling. Let's take a look at the 1970s:
> sotu_meta[185:191, 1:4] # A tibble: 7 x 4 president year years_active party <chr> <int> <chr> <chr> 1 Richard M. Nixon 1970 1969-1973 Republican 2 Richard M. Nixon 1971 1969-1973 Republican 3 Richard M. Nixon 1972 1969-1973 Republican 4 Richard M. Nixon 1972 1969-1973 Republican
5 Richard M. Nixon 1974 1973-1974 Republican 6 Richard M. Nixon 1974 1973-1974 Republican 7 Gerald R. Ford 1975 1974-1977 Republican
We see there are two 1972 and two 1974 addresses, but none for 1973. What? I went to the Nixon Foundation website, spent about 10 minutes trying to deconflict this, and finally threw my hands in the air and decided on implementing a quick fix. Be advised that there are a...