These are the episode title assigned by Otter. Some of the ones at the end are 
alternate titles of the same episodes. As near as I can tell the episode first lines 
are all there are.

 49/06/07       Final Curtain Call
 49/09/13       Boarder Killed
 50/05/25       Carol Carson Murdered
 50/07/18       Arson Case
 50/07/25       Carl Fortune
 50/08/29       A Judge Is Shot
 52/02/08       Dr Alanby Case
 52/07/09       Gangster Dan Wilmore Murdered
 52/07/24       Eddie Phillips, Escaped Killer
 52/08/07       Murder in The Dentist's Office
 52/08/14       Captian Mendoz's Treasure Map
 52/08/21       Professor Allenby Murdered
 52/08/27       An Alderman Is Murdered
 52/xx/xx       The Jean Harling Case
 52/xx/xx       The Kalare Temple
 52/xx/xx       Truck Engine Murder

It is believed that the only available episodes are the 13 that follow.

490607  Final Curtain Call
Dialog First Line: "...And here is Mr. Kegg to tell us just what that means." 
"Good evening Ladies and Gentlemen." "Mr. Kegg just what is meant by
Amicus Curiae?" "Translated from the Latin, it means simply Friend of the Court..." 
Alt. Titles:

490913  Boarder Killed
Dialog First Line: "...here is Jonathan Kegg." "Good Evening. As each of us has the
right to trial by jury, so each of us has the duty to bear witness truthfully when
we're called upon to do so. It might happen to you tomorrow..." 
Alt. Titles:

500525  Carol Carson Murdered
Dialog First Line:  (Train Whistle) I beg your pardon. Is this seat taken?" "No it isn't.
Sit down won't you?" "Thanks. Where you headed for?" "Bear Lake, Illinois to do a little
fishing."
Alt. Titles:

500718  Arson Case
Dialog First Line:  "Dinner will be ready in a few minutes, Jonathan. Did you have a pleasant 
drive up?" "Yes, thank you, Sarah." "I'm often complimented on my famous brother, Jonathan
Kegg, these days. This work you do as Amicus Curiae..."
Alt. Titles: Teenager Burns Store


500725  Carl Fortune
Dialog First Line: Start delayed by News report of first North Korean Night Attack.
The usual intro ends with introduction completed by Jonathan Kegg.
(Music, Auto motor) Don't you think you're driving a little fast, Carl"
Alt. Titles:

500829  A Judge Is Shot
Dialog First Line:  "Good night, Nathan." "Good night, Sir, Miss Pamela." "Ah, Nathan 
is the perfect butler. A wonderful dinner, good coffee in the study and  this swell brandy..."
Alt. Titles: Judge Hardy Shot

520709  Gangster, Dan Wilmore Murdered
Dialog First Line:No Intro. "One more letter, Miss Rogers and then you may go home."
"Thank you Mr. Kegg. I'm in no hurry." "We've had a long day. This will be the last."
Alt. Titles:  Gangster, Dan Wilmore Murder

520724  Eddie Phillips, Escaped Killer
Dialog First Line: (Sweet toodling) "It's almost six o'clock, Sharon" "Wally dear, why
couldn't Randal come up here to your apartment to meet me." "Honey, you still don't 
understand, do you?..."
Alt. Titles:  Eddie Phillips Escapes From Jail

520807 Murder in The Dentist's Office
Dialog First Line:Here's your key, Mr. Kegg, Room 102. Thanks Jim, I can
always count on you to remember my room number.
Alt. Titles: Murder At the Eye Doctor's,
	Murder At the Doctor's Office

520814
Dialog First Line: "Paper Here! Paper Here! Get your paper here! Amusement Park
Killer Accused, Read all about it! Blah. Blah."  "Give me the Times, Joe". it!
Alt. Titles: Jean Harding (Harling) Case
	Captain (Capitan, Captian) Mendoz's (Mendoza's) Treasure Map

520821  Kalare Temple
Dialog First Line: "Anything else, Miss Rogers?"  "Here's something, Mr. Kegg. A note from
the Alumni Secretary at the University..."
Alt. Titles: Professor (Dr.) Allenby (Alanby) Murdered (Case)
	
520828(7)  An Alderman Is Murdered
Dialog First Line: (Car engine sounds) "You look like you have something on your
mind, Sid. Some of the boys been bothering you, your books?" "The operation is running
smooth as silk. Cadie there's a small personal matter of 15,000, remember?"
Alt. Titles:  The Alderman

52xxxx   Truck Engine Murder
Dialog First Line: "Good Evening Mr. Kegg, how are you?"  "Fine, thank you, William, and you?"
Alt. Titles: Truck Engine