A few to add to your list:
JohnHancock - Nov 2008, still active.
Cash11 - Jun 2009, still active.
pauls - Dec 2007, still active.
restorethis - Nov 2009. Still active in 2020, but not played in the last few months.
portsD - Feb 2008. Still active, but not played since mid-June 2020.
Eivets - Feb 2009, still active.
Cate55 - Apr 2009. Still plays occasionally.
ahades - June 2009. Clocked up 3000 consecutive days last year (see profile blog), not sure if he still plays.
Not active, but have played 1 or more games recently:
Macduff10 - Jan 2009, played a game in July 2020.
b0geybuster (spelled with a zero) - Dec 2009, played a few games in June 2020.
Faterson - May 2009, played a game in April 2020.
DanSamCam - Jul 2009, played a couple of games in July 2020 and has been threatening to come back.
Woodsy747 - Feb 2009, played a game in April 2020.
Oldies Not active any more:
Andyson - Jun 2009. Passed away, but will always be remembered.
Teetime1 - Dec 2009. b0geybuster's dad. No recent score history or activity.
ljbast - Aug 2009. Doesn't seem to have played in the last couple of years.
SweetiePie - Apr 2009. Was very ill I believe, don't know if she is still with us.
Chuckiee - Jun 2008. Stopped playing not long after his wife died a few years ago (within the last 5 years)..
I myself have been here since Nov 2010. Took a break for about 4 years from 2014 following the probable death (unconfirmed) of WGT friend LizzieRossetti, looking in maybe a couple of times a year, playing the odd game with Andyson whilst chatting on Skype. Came back to WGT regularity some time in 2018.