This project seeks to identify the paternal ancestry of those with the present-day surname Challenger or a variant thereof. It is driven by a focus on the area of Bristol and North Somerset in England in the 18th and earlier centuries, when the same families appear to have gone by the name Challoner. However, we will investigate with equal enthusiasm the names occurring elsewhere. Unsurprisingly, bearers of the name are known to have migrated in the past two centuries from North Somerset to South Wales, London, Co. Durham, Carlisle, Glasgow, Pittsburgh and elsewhere in the USA, and anywhere there was a coalfield. Are you one of these? Please join us! Before settling down as the spelling 'Challenger' in Victorian times, the name appears in many varieties (e.g. Changller, Changlenger) within the same families; some such as Chandler and Challender are well-established in their own right. Y-DNA testers with any of these names (or variants thereof) will be accepted into this project with the provisos that their information is relevant to its aims and they have also joined any other Y-DNA project which may specifically cater for their name. The Administrator has ten years’ experience of analysing Big Y data and will, where feasible, define inter-relationships using both SNPs (based on FTDNA’s own analysis) and STR mutations. The latter will include those determined from STR Panels 6 and 7 data.