This catalogue provides key information on individuals who served, or who intended to serve, in Lancaster's retinue on the Aquitaine expedition of 1345–46. The entries are not complete biographies, but provide a summary of qualitative evidence of each person. Entries are arranged in alphabetical order by surname and are given in the following format:

Note that evidence of county of origin is tentative when based solely on a locative surname which has several toponyms. For example, it is feasible that the archer Thomas de Ashley may have originated from either Cheshire or Northamptonshire, as there are places named Ashley located in both counties. Forenames are given in their modern indigenous form, except where ambiguity remains. Locative surnames are given in their modern form if the place-name can be identified with certainty (e.g. Blakschaue is rendered as Blackshaw, Yorkshire), as are descriptive (e.g. Broun as Brown) or occupational names (e.g. Cok as Cook), except where a more common form of the surname exists in the sources. Sir Thomas Cok, for example, is rendered as Cok rather than Cook.

For the purpose of brevity entries have been kept short and generally do not include information which can be found in the main text of this work, or in well-known secondary literature. Evidence of military service is not referenced in detail, nor are the administrative commissions undertaken by men at county level which has been largely sourced from the online Calendar of Patent Rolls. Similarly, the evidence of landholdings is often duplicated with the evidence of service in Lancaster's retinue (line two), and therefore is usually only referenced once.