You can find out when most of the Mersch families immigrated to the United States. You can focus your search to immigration records dating from that era. Immigration records can tell you an ancestor's name, ship name, port of departure, port of arrival and destination.
What is a System Requirements Specification (SRS)? A System Requirements Specification (SRS) (also known as a Software Requirements Specification) is a document or set of documentation that describes the features and behavior of a system or software application.
specification - (patent law) a document drawn up by the applicant for a patent of invention that provides an explicit and detailed description of the nature and use of an invention. document, papers, written document - writing that provides information (especially information of an official nature)