In this article we present newly found lexical and grammatical data pertaining to Skepi, the Dutch-lexified creole which is now extinct but was once widespread in the Essequibo area of what is today the Republic of Guyana. The source of this new material are the linguistic notes contained in the diary of Reverend Thomas B. Youd, a missionary in service of the Church Missionary Society, who was active in the area from 1833 to 1842.