Older years (e.g., 2010, 2011) have oddly-named variables from TIGER files that generate population density errors (at a minimum)

[wcurrangroome]

[wcurrangroome]

Separately, there are variable name alignment issues that cause errors even in later years where tigris data are consistent.

The first variable to error out, as late as 2016, is : B28002_001E.