This interesting surname of English origin is a locational name from a place so called in Buckinghamshire, deriving from the Old English pre 7th Century river name "Sorge" meaning "Trickling", "slow-moving" plus "broc" "stream". The surname dates back to the early 16th Century, (see below). Variations in the idiom of the spelling include Seabrocke, Seabrook, Sebrook, etc.. Bernard Seabrocka married Christian Dandell at St. Andrew by the Wardrobe, London on June 11th 1558. Margaret, daughter of William James Seabrooke, was christened at St. Margaret, Westminster on July 15th 1599, and Mary Seabrook married Robert Tyson at Allhallows London Wall on July 12th 1663. One, Mary Seabrook, aged 48, a famine emigrant, sailed from London aboard the "Northumberland" bound for New York on August 12th 1846. The first recorded spelling of the family name is shown to be that of Ales Sebroke married Richard Wood, which was dated 1539, at St. Mildred Poultry with St. Mary Colechurch, London, during the reign of King Henry V111, known as "Good King Hal", 1509 - 1547. Surnames became necessary when governments introduced personal taxation. In England this was known as Poll Tax. Throughout the centuries, surnames in every country have continued to "develop" often leading to astonishing variants of the original spelling.