I haven't given up, but I had to slow way down due to summer/family obligations.
I hope this isn't too much info, if so, moderators, please help me. I tried hard to keep it to a minimum.
I was pointed in the direction of someone who is a friend of the Hwdr clan. Her initials are WB. Her first name is the same as one of the Hwdr fam, as in the 60s pop tune by The Association, "everyone knows it's ____" ������ Last name is a common English surname-- a male servant is called a ___ ? Not valet

WB has 3 sisters (initials are for the names they use on FB):
CM--the oldest sister. She resembles LEK, and has hands like hers too. She has always lived in Texas. She is in her 40s.
DMB-- next oldest. Does not resemble LEK. She went to HS in one of the HWDR-related towns in E WA, and still lives close to there. She is 10 years older than WB.
TJ-- (same name as TT's eldest surviving daughter, TJ, but spelled differently) she is from TX, but now lives in E WA in the same town as as DMB. Along with WB, she was in foster care in UT with an LDS family.
WB-- she lives in E WA in the same town as the Hwdr fam. She knows them. She is LDS.
Some or all are half sisters, who didn't consistently live together whilst growing up. Their mother's name is CBM-- born in 1957. She resembles LEK. CBM is from TX originally, but was living and died (in 2012) in an E WA town, that is a HWDR fam town too. I couldn't get a good look at her hands as they were not visible in pictures, but CBM's mother had hands like LEK. CBM had her first daughter, CM, young-- 18 if I recall correctly. Here's where things get interesting-- one of CBM's daughters mentioned in a post about adoption that they were missing a sister. So there is a 4th child somewhere. Granted, CBM would have had to be very young to have given birth to LEK and given her up for adoption, but if LEK is actually on the younger end of the age range, it is possible.
I have been reticent about contacting the sisters because I am not sure if anyone has been working this lead already? Don't want to bug them any more than is necessary. Also, I am not really able to organize and take notes right now, so If anyone else is interested in scouring online sources, that would be great!