Suchowola - spis spowiadających się 1864 is the annual census of parishioners who were member of the Roman Catholic church in Suchowola, marking their fulfillment to confess their sins and receive Holy Communion at Eastertime.

This census, covering 55 villages, recorded the names and ages of over 5,000 household members, their relationships with others in the same house, and identified their nearby neighbors.