If you haven't already, I would recommend trying every mis-transcription you can think of and then thinking of some more.
Boutflowers/flours have been transcribed as Bootflour, Bootfour, Boltflour, Balflour, Baltflour, Boatflour, Bootflower etc.. etc.. My great great grandfather died at sea. I knew how and where he died from a family member but couldn't find the record until I put a random collection of letters into the search box and hit the jackpot.
Liony and Iiony might be worth a go.