A study combined a simple mnemonic counting system with the keyword method to determine whether the keyword vocabulary methods can be effectively combined with other mnemonic strategies to facilitate coding of numerically ordered information. This system was then taught to 48 eighth-grade students in the context of learning the names and numbers of 20 United States presidents. The mnemonic strategy represented a combination of three pictorial techniques: the method of loci, the pegword method, and the keyword method. Subjects were randomly assigned in equal numbers to one of two experimental conditions (mnemonic or control) and to one of two list orders (chronological or alphabetical). Before the study, students in all conditions were told that at test time half of the time they would be given a name and asked for a number, while the other half of the time they would be given a number and asked for a name. Results showed that students taught according to the combined mnemonic strategy out performed the control subjects, whether provided with a well-ordered set of presidents during input (presidents presented in their proper serial order) or a more complicated set (presidents presented in alphabetical order). (HOD)