The number after the names indicate the page number which information about that person is located on (it is an index). The book itself offers the following information for each person: No. of cattle, No. of horses, No. of mules, No. of sheep or goats, No. of swine, No. of carriages or wheeled vehicles, Pianos-organs or melodeons, No. of watches, Value of jewelry, gold/silver pcs., No. of guns, No. of pistols, bowie knives, dirks, sword canes, Total valuation of property, Aggregate sales tax per family. Jas refers to the name James. Hope this helps. Cindy