Hi taonga1,
I cannot search for the ITM notice for WAKEFIELD/SCHWASS without a place and date, necessary after 1881.
I was unable to find the ITM notice for WAKEFIELD/LANKOW. The card index provided this reference: BDM 20/3 p.129/47 (but underneath the '129' was '132'). I looked at both pages (which happened to be for Otago, not Nelson) but couldn't see an entry.
I did find your third request though:
Intention to Marry Notice. Archives NZ Ref: BDM 20/22 1877 Nelson p.451/4.
Joseph BUSCH, widower, a farmer aged 36 years, living at Aniseed Valley, Waimea East, length of residence 32 years, intends to marry Christina WAKEFIELD, a widow aged 41 years, living at Waimea East, length of residence 32 years, at the Office of the Registrar of Marriages, Nelson.
Regards, riley