The one Welsh county not covered is Montgomeryshire. Territorial jurisdiction was abolished in 1926, and the registries at St Asaph and Hereford were closed in 1928. The post-1858 records consist of series of large bound volumes of copy wills spanning the years 1858 to 1941, when all registries ceased to copy wills into registers. The records in NLW cover all the historic counties of Wales except for Montgomeryshire, and one English county, Herefordshire. Post-1858 Montgomeryshire wills were proved at the Shrewsbury District Registry whose register copy wills are at the Shropshire Record Office.
Contemporary manuscript indexes together with modern card indexes cover most of the records.
Comprehensive coverage will be found in the printed Calendar of Grants , an annual index of all wills proved and administrations granted in England and Wales since 1858. A set of the Calendar of Grants for the period 1858-1972 is available on the open shelves in the Printed Materials Reading Room. St Asaph Register copy wills, 1858-1928. Bangor Register copy wills, 1858-1941. MS indexes, 1858-1923.