For Martha L :
According to NSW BI, Martha's DOB was 11/01/1857 and mother's name was Frances
Found no NSW Death Index even remotely matching Martha's details with surname Pearce
For Alfred L :
1869 NSW BI 2358/1869 - specific DOB cannot be verified in NSW BI as only the year is reported there
NSW DI dated 11/12/1927, index number 21124/1927