Nelson Homestead, also known as the Elisha Riggin House, is a historic home located at Crisfield, Somerset County, Maryland. It is "telescope" style frame house built about 1836. The three-part building rests on a brick pier foundation and is covered by a series of gable roofs. Also on the property is a small gabled frame building and a family cemetery. It was listed on the National Register of Historic Places in 1985.In 2014 it was included in the top 10 most important endangered historic properties by Preservation Maryland / Endangered Maryland