By Donald Olson...[et.al] By Donald Olson...[et.al by David Else...[et.al] by Erle Wilson...[et al.] by Sarah Wilson...[et al.] By Edward Denison...[et.al.] By P David Kitson...[et.al] by David Else...[et.al by Eric Tyson... [et al.] by Erle Wilson...[et al.