In a few of the calls, it is relatively clear who the recipients were. Some of the others required a little detective work and are merely speculation and educated guesses. This is all based upon online data-mining using free online search tools. If you have any corrections and/or suggestions, please contact us or leave a comment below.
Mark (the prank caller) – Identity and whereabouts unkown. This is certainly NOT Mark Freuder Knopfler of Dire Straits. In the recent restoration of these calls, the background voices are more discernible. In call #3, after Knopfler yells “Automatic Re-Dial!”, at (0:35) a male voice is heard saying “You alright, Mark?” Mark replies, “Mm Hmm…” The male voice, now even closer, again asks “You alright?” This would lead one to believe that the caller’s real first name is Mark. In call #6, at (0:11) the same male voice can be heard saying what sounds like “Hey Mark, I need to talk to you…” Also, since long-distance was not free (or even cheap) in those days (circa 1986 or 1990), the calls were likely placed from the Dover, Delaware area. If you have any information regarding the caller’s identity and/or his current whereabouts, please contact us or leave a comment below.

The Dover, DE metropolitan area
The Calls:
(Updated April 2012)
#1 – That’s My Wife / The Jealous Husband
Amanda White – There are 4 listings at whitepages.com for Amanda White in Delaware. Amanda L. White (age 47) of Milford, DE would have been in her twenties at the time of the call. That sounds about right, but there is not enough information…
#2 – She’s On Heroin / Damned Liar
Bessie Hawkins – Mark never spoke with Bessie directly. He talked her daughter. There are 2 listings at peoplesmart.com for Bessie Hawkins in Delaware. Both are deceased, but only one of them was alive at the time of the calls. Bessie M. Hawkins of Harrington, DE died in 1994 at the age of 74.
Bessie’s Daughter – whereabouts unknown
#3 – Automatic Redial / Where’s Margaret?
No further information. Still unable to locate Margaret.
#4 – Smegma Picnic / Class Play
No further information.
#5 – Carve My Initials
No further information.
# 6 – Sleeping / Man of the House
Anita Knight – peoplesearch. com has a listing for Anita McDowell Knight (age 66) in Dover, DE.
Other Female Voice – No further information.
Man of the House – Whereabouts unknown.
#7 – Please Try To Pay Attention / Goodwill Games
Charlie Knighton – There is a listing at whitepages.com for Charlie L. Knighton (age 69) in Dover, DE. And yes, it’s on Garfield Drive…
Charlie’s Wife – possibly Clementine H. Knighton (age 70) of Dover, DE
#8 – Broiled Lobster Tail / Cindy’s Boyfriend
Cindy Lindenlauf – There is a listing at whitepages.com for Cynthia B. Lindenlauf (age 58) in Felton, DE. She is associated with Joseph R. Lindenlauf, Jr. (i.e. “You both like lobster, don’t you? [long pause] Joe does…”)
Monica Wiscaver (“…yeah, but it’s in the Lindenlauf family yeah, but…”) - No further information. UPDATE: (4/14/2012) There is a Monica Kaye Boyles (née Wiscaver) listed on Facebook. She lists Cindy Lindenlauf as her mother and graduated (1990) from Lake Forest High School in Felton, DE. Since the 1990 Goodwill Games were held from July 20 through August 5, 1990 – this could be the “smoking gun” that proves that the calls were made in the summer of 1986. In the prank, Monica states that she is “still in high school”… (special thanks to “Chad” for providing this update via email)
Joe (Cindy’s sweetie) – whitepages.com has a listing for Joseph R. Lindenlauf, Jr. (age 60) in Felton, DE .
#9 – Let Me Fill You In… / George & Marie
Marie Lindell - peoplesmart.com has listings for 3 different persons named Marie Lindell in Delaware, two of which are deceased. Marie H. Lindell is the only one with a previous address in Dover, DE. She died in 2001 at the age of 81.
Tom - No further information. His last known residence was in Newark, DE
Nancy - No further information. She was visiting from Newark, DE at the time of this call.
George - No further information. He was last known to be living in California. He may or may not have a marijuana conviction on his criminal record (if he got caught…)
#10 – No Winnie, Don’t Go…
Winifred Williams – white pages.com has a listing for a Winifred E. Williams in Dover, DE
#11 – Mark Who? /
Bea Williamson – in this call, Mark dials the wrong number. Initially, we thought he asked for Bea Williamson (short for Beatrice). After a little research, we have determined that he was likely trying to call Betsy S. Williamson (age 65+) of Dover, DE. She was probably listed as B Williamson in the phone book. He actually calls a different number and speaks to a different woman and her son.
Note: This is pure speculation. The calls are possibly made to the residence of Carl Jackson Wyche (age 62). Carl is currently a Criminal Justice instructor at Delaware Technical & Community College. There is a listing for a Geraldine J. Wyche (age 56) that is related to Carl. This is possibly his wife, and could the woman that Mark speaks to before she hands the phone to her son. Although we were unable to find a link to Carl and Geraldine, there is listing at intelius.com for a Lamont A. Wyche (age 37) with a previous address in Dover, DE and Dover Air Force Base. This possibly the person who says “Mark Who?” Again – PURE SPECULATION
#12 – Model Release Forms / Naked Photos
Bertha Webb – There is a listing at peoplesmart.com for a Bertha C. Webb of Milford, DE. She died in 2002 at the age of 87.
Male Voice – ussearch.com has a listing for a relative named Quinton J. Webb (age 91) in Milford, DE. Not sure if it is a brother or husband…
Elsie Rumstich - No further information.
#13 – You Sell It / The Heroin
Perlina Webb – intelius.com has a listing for Perlina Webb of Dover, DE. Charles O. Webb is the only listed relative.
Male Voice – ussearch.com has a listing for a Charles O. Webb (age 102) of Dover, DE. Perlina Webb is the only listed relative.
#14 – Put Pam Back On
Pam White – a search for Pam White in Delaware yields 15 results at peoplefinders.com - The ages vary and include for Dover, Milford, Wilmington and Newark, Delaware. There is not enough information to determine which Pam White was the recipient.
#15 – Retroactive Waste
Don Gretzky (of the DNREC) - No further information. Most likely a fictitious name.
Donald Maloney - intelius.com has 3 listings in Delaware for people name Donald Maloney, ranging in age from 21 to 85. This could just be a made-up name as well…
No further information about the male recipient of this prank or his daughter. Our source cassette tape cut off the name at the beginning.
#16 – Pretty Clever, Eh? / Christmas Lights and Erector Sets
Linwood Willey – ussearch.com has a listing for Linwood E. Willey (age 64) of Maryland with a previous address in Dover, DE.
There also a listing for Ervin L. Willey of Milford, DE, who died in 1993 at the age of 76. He has a listed alias of Linwood Willey. In this case, the woman who answered could be Clara Willey, also of Milford.
So the question on this one is: Does Linwood sound like a 40-year-old or a 70-year-old? We tend to lean toward the latter…
Again, this is all pure speculation. This is all based on data mined from the internet, using only free online search tools. No claim is made regarding the veracity of this information. If you have any possible theories, corrections and/or suggestions, please contact us or leave a comment below.