The Baking Powder Wars

1880 header. Vincent Price's grandfather involved.

https://www.smithsonianmag.com/science-nature/great-uprising-how-powder-revolutionized-baking-180963772/

https://www.loc.gov/item/2018694764/

https://www.loc.gov/item/2005691096/

https://immortalephemera.com/17447/vincent-price-grandfather-dr-prices-baking-powder/

https://www.loc.gov/item/93504453/