Marilyn Griggs Riley; Thomas J. Noel (2006). "Caroline Bancroft". High Altitude Attitudes: Six Savvy Colorado Women. Big Earth Publishing. p. 100. ISBN978-1-55566-375-9.
Marilyn Griggs Riley; Thomas J. Noel (2006). "Caroline Bancroft". High Altitude Attitudes: Six Savvy Colorado Women. Big Earth Publishing. p. 106. ISBN978-1-55566-375-9.
Marilyn Griggs Riley; Thomas J. Noel (2006). "Caroline Bancroft". High Altitude Attitudes: Six Savvy Colorado Women. Big Earth Publishing. p. 105. ISBN978-1-55566-375-9.
Marilyn Griggs Riley; Thomas J. Noel (2006). "Caroline Bancroft". High Altitude Attitudes: Six Savvy Colorado Women. Big Earth Publishing. p. 104. ISBN978-1-55566-375-9.
Marilyn Griggs Riley; Thomas J. Noel (2006). "Caroline Bancroft". High Altitude Attitudes: Six Savvy Colorado Women. Big Earth Publishing. p. 101. ISBN978-1-55566-375-9.
Marilyn Griggs Riley; Thomas J. Noel (2006). "Caroline Bancroft". High Altitude Attitudes: Six Savvy Colorado Women. Big Earth Publishing. p. 107. ISBN978-1-55566-375-9.