This paper describes how the database for entrepreneurs in the 1871 census was created and deposited for ESRC project ES/M010953. This project uses I-CeM as its main source. However, I-CeM does not cover England and Wales in 1871. This paper describes how data from an alternative supplier, S&N [theGenealogist.co.uk] was extracted and aligned with I-CeM to provide a full database for 1871
