Ulster Irish was the main language spoken in Ulster from the earliest recorded times even before Ireland became a jurisdiction in the 1300s. Since the Plantation, Ulster Irish was steadily replaced by English. The Eastern dialect died out in the 20th century, but the Western lives on in the Gaeltacht region of County Donegal. In 1808, County Down natives William Neilson and Patrick Lynch (Pádraig Ó Loingsigh) published a detailed study on Ulster Irish. Both Neilson and his father were Ulster-speaking Presbyterian ministers. When the recommendations of the first Comisiún na Gaeltachta were drawn up in 1926, there were regions qualifying for Gaeltacht recognition in the Sperrins and the northern Glens of Antrim and Rathlin Island. The report also makes note of small pockets of Irish speakers in northwest County Cavan, southeast County Monaghan, and the far south of County Armagh. However, these small pockets vanished early in the 20th century while Ulster Irish in the Sperrins survived until the 1950s and in the Glens of Antrim until the 1970s. The last native speaker of Rathlin Irish died in 1985.