This document provides an overview of strategies for tracing Welsh ancestors, including: - Less than 21% of Welsh church and chapel records have been extracted for the IGI, so original records must be searched - Patronymics (names based on a father's name) were commonly used before 1813 and strategies are outlined to search using patronymics - Nonconformist chapel records are an important source as over 80% of Welsh people were nonconformists by the mid-19th century, but many records were not deposited in record offices