How many to go: Helen SINTON mtDNA update

Further research into descendants of Helen WIGHT nee SINTON, and a resulting update to WikiTree for her daughters' families in particular has extended the chart of those carrying Helen's mitochondrial DNA.
Unfortunately, it looks to be a rather short list of living candidates, and with at least one branch apparently in Sth Africa and another in Portugal, information is a little harder to come by. 

Would love to hear from:

• any descendants of Jane Wight BECKINGHAM nee McGREGOR, although indications are there's only one daughter, unmarried at age 30 when travelling to/from the UK in 1960.
• any descendants of Margaret Scott NORTH nee CROWDEN, born Edinburgh, but apparently marrying and living in Lisbon, Portugal in the 1950s
• any descendants of Isabella Wight SCOTT nee BELL, who married George Gideon SCOTT in 1936 at Innerleithen. 
• any living family for Helen Euphemia Leckie BROWN nee SOUTAR? 

The search might have to go back another generation and down the mtDNA candidates from Jane WIGHT, which might actually be easier.
Surely at least one of the Jane SINTON/James TELFER/TELFORD branch will have a living mtDNA descendant in Australia?

Love to hear from you if you can help in this quest.