Measles in US (1921-2015)
https://ourworldindata.org/grapher/measles-cases-and-death-rate?time=1921..2015
(2010-2019)
https://www.cdc.gov/measles/cases-outbreaks.html

Polio in US (1910-2010)
https://ourworldindata.org/polio#data-sources

Smallpox in each country (1900-1977)
https://ourworldindata.org/smallpox

Diphtheria:
https://www.cdc.gov/vaccines/pubs/pinkbook/downloads/dip.pdf
https://web.archive.org/web/20080514014018/http://www.healthsentinel.com/graphs.php
https://www.historyofvaccines.org/content/us-diphtheria-cases
https://www.statista.com/statistics/186658/new-cases-of-diphtheria-in-the-us-since-1950/

Pertussis
https://www.cdc.gov/pertussis/surv-reporting/cases-by-year.html
https://www.who.int/biologicals/vaccines/pertussis/en/
https://www.cdc.gov/mmwr/preview/mmwrhtml/00048610.htm

Tetanus
https://www.cdc.gov/vaccines/pubs/surv-manual/chpt16-tetanus.html

US population:
http://www.multpl.com/united-states-population/table

Good worldwide data from World Health Organization:
http://apps.who.int/immunization_monitoring/globalsummary/timeseries/tsincidencemeasles.html

1918-19 Spanish flu
https://virus.stanford.edu/uda/index.html

AIDS
https://www.cdc.gov/nchhstp/newsroom/2011/hiv30thhistoricgraphs.html
https://ourworldindata.org/hiv-aids
https://www.hiv.gov/hiv-basics/overview/data-and-trends/statistics


Overall history
https://www.historyofvaccines.org/timeline#EVT_100742

Life expectancy:
http://www.demog.berkeley.edu/~andrew/1918/figure2.html