Official SEC JSON individual Massachusetts county object paths for viewing. [https://jsonhero.io/j/yesDZj1nfKfx HERO_ROOT]
2019: [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2019.46 2019-005] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2019.47 2019-009] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2019.48 2019-013] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2019.49 2019-017] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2019.50 2019-021] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2019.51 2019-025] 
2020: [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.52 2020-005] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.53 2020-009] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.54 2020-011] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.55 2020-013] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.56 2020-017] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.57 2020-021] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.58 2020-023] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.59 2020-025] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.60 2020-760] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2020.61 2020-027] 
2021: [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.82 2021-001] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.83 2021-009] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.84 2021-013] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.85 2021-015] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.86 2021-017] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.87 2021-021] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.88 2021-023] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.89 2021-025] [https://jsonhero.io/j/yesDZj1nfKfx?path=regCF_county_2021.90 2021-027] 

 harmless addition test