It consists of about 190 acres (77 ha) in Rochester and adjacent Dover, and has been in continuous ownership by the Jenness family since 1837.

It was, at the time of its 2001 listing on the National Register of Historic Places, one of just ten farms in the city with intact land and buildings.

[2][1] The Jenness Farm is located on the northeast side of Pickering Road in southernmost Rochester and northwestern Dover.

His successors, Edith and Charles Teague, expanded the farm's poultry operation, as a tightening of dairy handling regulations led to a reduction in milk production.

Intensive agricultural use of the land ended in the 1970s; it is now used for hay production and tree farming, and remains with Jenness's descendants.