The Survivors of the De Soto Expedition Average age 24.6 Mean age 24 The data used to calculate the ages of the survivors in 1539 was drawn from declarations in the various probanzas in which they testified. Many stated they were over or under a certain age, and many would give a rounded figure like 25 or 30, following it with the usual poco mas o menos. Therefore, the ages used here may be approximate, and with that caution they should be interpreted. 3. Education and Literacy It is clear that some of the survivors must have received a reasonable education for their time. Specifically, Rodrigo Rangel, who was also the personal secretary of de Soto, Luis Hemandez de Biedma, Luis de Moscoso, Juan de Afiasco, Juan Coles and Alonso de Carmona all left writings that can witness their education. As for the rest of the group, so little is known that an assessment of their literacy lies in whether they knew how to sign their names. Since witnesses in legal proceedings were required to sign their declarations, this can be ascertained from the surviving documents. The resulting data collected from available documents is displayed individually in Appendix II. Many survivors were required, at some point, to sign their names. Of these, only two declared that they did not know how to write. They were Ana Mendez and Francisco Redondo. As a consequence, for their time especially, this group of survivors may have had an unusually high literacy rate. According to this evidence, only three out of sixty-three, or only 5 percent of them could not write. In comparison, if signing ones name equates with literacy, it has been demonstrated by historian James Lockhart, that 23% of the men who first conquered Peru and dethroned the Inca Emperor were definitely illiterate, and some additional percentage only marginally literate.159 70