This series consists of research files from county record offices and other archives, primarily in England. It also contains copies of emigrant letters home to England, sorts of master list of emigrants and research on sponsors. The files contain correspondence, memos, notes, material shared and passed to and from researchers in England and in Canada.

This series supplements Series 2 and contains correspondence to and from Wendy Cameron, Mary McDougall Maude, Brenda Dougall Merriman, Sheila Haines and family correspondents, photocopies of original documents, articles and other sources. It is organized alphabetically by family name.

Series consists of questionnaires and other data collected from descendants and other informants about families. It is arranged alphabetically by family name of the Petworth emigrant with the name of the correspondent(s) also noted in the file title. These files contain correspondence to and from Wendy Cameron, Mary McDougall Maude and Brenda Dougall Merriman, as well as questionnaires and photocopies from sources containing information about individuals or families.

Series consists of masters of the Family Information Sheets used to compile the list of "Emigrants on Petworth ships, 1832-1837", which comprises Part 2 of Assisting Immigration. These sheets were "intended as a snapshot of families at the time of emigration" and were used to compile an electronic database as well as the published list. The "masters" in this case actually consist of dated and initialled copies of all the sheets created for each name over time, and are chronologically organized within each name so that the progress of accumulation or duplication of information can be followed.