I did a search for Lucy's death and could not find one. The last "Lucy" to die in 1878 (according to my CDrom index) was in August 1878 .I did various kinds of searches for all years but to no avail.
The certificate numbers in my indexes are arranged date order rather than area or residency.The district records have diferent reference numbers but you cannot order certificates from these. The old District records are usually kept at council offices or Public Libraries. Thebarton district records may be found at the Woodville Library Service Tel (08) 8348 6111.