Library of Congress Collection,
If you use Google on "E. L. Todd" +aviation, you will find 27 links, one of which is fascinating and highly relevant.
RADIO CLUB OF AMERICA, Inc.
by: George E. Burghard
A little lower down the page you find a description of the formation of a second club, the Junior Wireless Club Limited . A Miss E. L Todd is named as an Honorary President.
Mrs. Russell Sage: Activism And Philanthropy in Gilded Age And Progressive Era America
(Philanthropic and Nonprofit Studies)
Hardcover: 552 pages
Publisher: Indiana University Press (October 11, 2006)
Product Dimensions: 9.3 x 6.5 x 1.4 inches
So glad to see that Lilian Todd shows up in Wikipedia now.
There's quite a bit about her in my book on Margaret Olivia (Mrs Russell) Sage, the multimillionaire philanthropist.
By 1911, Lilian was working full time in Sage's office as her administrative assistant in her philanthropy.
Tons more in: http://www.amazon.com/Mrs-Russell-Sage-Philanthropy-Philanthropic/dp/0253347122
Indiana University Press, pub. in paperback 2008.
Dr. Ruth Crocker
Professor of History
Department of History
310 Thach Hall
Auburn, AL 36849