Hi,

Mrs. Adlam's Angels is on Ralph McTell's second lp - Spiral Staircase (Transatlantic TRA 177) which came out in 1969. Incidently, this is the LP with Streets of London (first release of it anyway). The label credits Mrs. Adlam's Angel to McTell, so I assume that he wrote it. There might be more information on websites covering Ralph McTell.

Cheers Rana