I found the following article, from the 16 Jun 1921 issue of the Arizona Daily Star, in my grandmother's scrapbook:
Interesting Tucsonans
CHARLES E. WALKER
When Colonel Epes Randolph1 came to this part of the country to revolutionize the railroad industry, Charles E. Walker came with him as his private secretary and all-around confidential man.
This was 20 years ago. At that time Colonel Randolph's entire staff composed his secretary and one draftsman.
As Mr. Walker had had a number of years' experience in railroading in various parts of the country, he was particularly well fitted for the confidential post entrusted to him by the famous railroad organizer. As a matter of fact, railroading has occupied practically all of Mr. Walker's time since finishing his education and continued to do so until he directed his attention to banking.
Prior to this while on Colonel Randolph's staff, Mr. Walker took part in the starting of the Arizona Eastern organization, and the line through the Gila Canyon and in the consolidation of the Southern Pacific branch lines, those running to Globe, to Phoenix and to Cananea, Mexico, which were all placed under Colonel Randolph's management.
Later, Mr. Walker had charge of material and supplies during the construction of the Southern Pacific de Mexico lines, on the west coast of Mexico. These were built between 1904 and 1909.
There were no city ordinances against parking automobiles along Congress street when Mr. Walker first came to Tucson. As a matter of fact there wasn't very much to Congress street then, the principal business thoroughfare being North Main street. Here was to be found an almost continual line of hitching posts where the men parked their horses while trading or in search of recreation. Tucson was in every respect a frontier town.
Mr. Walker chose Tucson in which to settle, because of all the places that he had seen, and he had seen many while railroading in various parts of the west and in Mexico, this appealed to him as being the most attractive, as well as offering more inducements to a young man starting life.
Tucson's greatest assets, in Mr. Walker's opinion, are the climate and its natural resources. By far its greatest need, he thinks, is an adequate water system.
"Our present water system is one of the city's greatest drawbacks," said the vice president of the Consolidated National bank. "We should lay our plans at an early date to have the deficiencies and errors of the present water system corrected."
Mr. Walker was born in Bloomington, Ind., in 1881.2