period of service, doubtless, must be credited to Anthony Benezet who first taught in Philadelphia in 1742[992] and continued there with very brief intermissions until his death in 1784.[993] These are only a few cases and the majority of them in the city where it was possible to employ the best, pay them better, and hence, keep them longer. Hence, too much weight must not be given to the facts above stated as proving a long term of service was common. If a study of a number of cases in country districts were possible, the results would probably be very different. [Sidenote: Tenure of mistresses] [Sidenote: Songhurst] [Sidenote: Burchall] [Sidenote: Thornton] [Sidenote: Her success questionable] It is difficult to get information about the length of service of the mistresses. When first mentioned in Philadelphia records[994] they are spoken of as so many nonentities, their names not given. The term of service of Olive Songhurst, the first mistress whose name is mentioned,[995] we cannot determine. The women teachers seem quite frequently to have begun work under the overseers without much notice and to have left off with little more. There are, however, a few cases where we know that the term of service was of considerable length. Rebeckah Burchall seems to have taught continuously at one school from 1755[996] to 1761.[997] Whether she discontinued service on leaving that school is not known. Ann Thornton was probably not continued in service more than two years. She began in 1755 when she filled Anthony Benezet’s[998] place and left in 1757.[999] In the meantime, it had been necessary for the board to draw up a set of special rules for the government of her school,[1000] from the nature of which it is probable that she did not take another school under their direction. [Sidenote: No system of license found] [Sidenote: Recommendation and certificate of removal; their use] From none of the sources of information does it appear that there was any license system whatsoever. The recommendation of well-known Friends was the best pass a teacher could have, as was instanced by those sent over by John Fothergill. In addition to the personal recommendation, the certificate of removal from his home meeting was an assurance to Friends in other parts that an individual was “clear” of all entangling alliances and might be received into full membership. In no case where a teacher came to teach, from a distance, did he fail to take and produce a certificate on his arrival. These, of course, did not certify the things which modern licenses do, but they, in conjunction with the personal recommendation as to ability, seem to have answered the purpose. [Sidenote: The term of employment usually a year] [Sidenote: No written contract found]