Many of the people who wrote the sid music used aliases.
All the ones I know about are listed here.

DC,  DC_and_Bert, DC_Star_and_Cpr and DC_Starr are all the same composer.
She just used different names when she was using different accounts. 
Real name might be Debbie Cruz?

Other Aliases are listed below:

Alan Cordner       aka Vangelis
Annie Bradford     aka Texas1ady1
Art Perlinger      aka Music Man3
BJ Pools           aka Sloop JB
Bob Allande        aka Uncle Slam
Bob Handforth      aka Rohan2
Bobbye Haupt       aka Bobbye
Brian Barrett      aka Psycho_K / PK Labs
Brian Meagher      aka BrianM1
Bruce Hamel        aka Whole Note
Charles J Fitzhugh aka Sir Fitz
Chris Alexander    aka Gustave
Jonathan Dunn      aka Choroid  (see HVSC for other tunes)
Colin Roth         aka Colin10
Dan Klepach        aka D-Bug
Dave Burkus        aka Mmcss
Dave Palumbo       aka Mets5
Dave Stewart       aka Sir Dave
David Strauss      aka Li Dave
David Taylor       aka Super Dave
DDK                aka 75 Girl$
Glen               aka GlenD5
Gordon B Isnor     aka Blues Man
Jacob L. Lemmons   aka Skarn
James S Ondracek   aka Jimi O
Jeff Goll          aka Tollman
Jerry Roth         aka DrJ / DrJ5
Jim Brock          aka Jim / KCORB
Jim Masterson      aka Collecting
Jim Wallace        aka Lazy Mode
John Dorner        aka Delerious
John Marcinko      aka Kid Crue
John Meyers        aka Diskdriver
John Rafalak       aka Jon / Sysop Jon
Joseph A Grau      aka Jabba Hutt
Keith Fulkerson    aka ATOR
Laura L Kennemore  aka Lyric / Laura
Mark Dickenson     aka Mark AD II
Mark Hazen         aka Synthax
Mike Madsen        aka Sadist / Madman
Mike Miller        aka Parody Man
Peggy Souder       aka MS Guitar
Peter Karlsson     aka Mr P
Rich Johnson       aka Cathouse
Rob White          aka Nu2Sids / Robie2
Robert Farver      aka Stampmagic
Robert S Shaw      aka Bob Shaw / Juky
Robert Willis      aka Z Axis
Ross Kinard        aka Skulleader / Skulleadr
Scott Baeder       aka Pinkfloid
Sean Robinson      aka Frosty
Steve Sileo        aka The Sileo
Sylvia Lutnes      aka Syl
Tristan Miller     aka Lord Myrkul
Troy Rutter        aka Datasid
