In 1824, pioneer Isaac Funk founded what would become Funks Grove.  The area provided a good water supply, fertile soil, and timber for shelter and heat.  Isaac and his son made maple sirup and sugar on their farm, since it was the only readily available sweetener.

In 1891, the Funk family opened the first commercial maple sirup farm at Funks Grove. 

In the 1920s, the paved road became Route 66, which ran through Funks Grove. During this time, they had around 600 taps and produced around 240 gallons of sirup per year.

Funk's sirup is spelled with an 'i' because in the 1920s this spelling was preferred by Webster's when referring to the product that results from boiling down of the maple sap without adding extra sugar. This spelling was also the wish of Hazel Funk Holmes in her will, which arranged for the timber and land to be protected so future generations can enjoy the "sweet stuff" produced in Funks Grove.

Today, Funks Grove Pure Maple Sirup draws from around 6,400 taps and produces about 2,000 gallons of sirup each season.