Hello,
Stumbled across these threads. My name's Robyn Edmanson and I'm married to Geoffrey Robert Edmanson, cousin of Jane Edmanson (gardener) and grandchild of George Arthur Edmanson and Catherine Edmanson. I believe George's father was Thomas Edmanson, builder of the Town Hall in Cape Town and later moved to Melbourne. Interesting how these names appear in other family strands.
Robyn