Hi Doc,
I only have an un-checked list of deaths from 1913-1914.
Here goes:
Date Name
22/01/1913 Schlegel
27/01/1913 Hild
07/02/1913 Jenetzky, with Dieckmann (passenger)
15/02/1913 Lenk
25/02/1913 Werntgen
26/02/1913 Helfersrieder
09/04/1913 Lichte
26/04/1913 Germersheim, with Von Mirbach & Von Brunn (passengers)
13/05/1913 Dietrich (passenger) - presumably the pilot survived
27/05/1913 Michaelis
28/05/1913 Horn
19/06/1913 Krastel, with Gerbitz (passenger)
04/07/1913 Helscher
07/07/1913 Lendner
14/07/1913 Dietrichs
15/07/1913 Stoll
18/07/1913 Westphely
24/07/1913 Stengel (passenger) pilot survived?
04/08/1913 Brooks
10/08/1913 Rossler (with umlaut over the o)
10/08/1913 Stephan
15/08/1913 Rutgers (with umlaut over the u)
22/08/1913 Schmidt
02/09/1913 Kahl
04/09/1913 Von Eckenbrecher, with Prinz (passenger)
08/09/1913 Serge
09/09/1913 DR. Ringe
12/09/1913 Lorenz
26/09/1913 Schulz
13/10/1913 Konig (with umlaut over the o)
17/10/1913 Koch, with Mante (passenger)
17/10/1913 Haeseler
29/12/1913 Remus
21/01/1914 Schweizer
02/02/1914 Sollner (with umlaut over the o)
07/02/1914 Blauk
08/02/1914 Hugo Frank
10/02/1914 Degner
14/03/1914 Lieut. de Lesser
18/03/1914 Lieut. Bongard
26/03/1914 Lieut. Groner (with umlaut over the o)
30/03/1914 Capt. Reinhardt
02/04/1914 Lieut. Langmeyer
10/04/1914 Reichelt, with Selma Steglich (passenger)
01/05/1914 Lieut. Mayer
09/05/1914 Lieut. Fabre, with Lieut. Kurz (passenger)
16/05/1914 Lieut. Wiegand, with Lieut. Fellinger (passenger)
17/05/1914 Lieut. Mueller (spelling) ?
17/05/1914 Lieut. Rohde & Lieut. Kolbe (Both passengers) pilot survived?
18/05/1914 Lieut. Kolbe
23/05/1914 Lieut. Boeder & Lieut. Bernhard (Both passengers)
I think that Thaddeus Robl was the first German victim - in 1910, and soon after was a man named Haas ?
You can check the list of aviator certificates granted in Germany up to the beginning of WW1, to find out first names etc.:
http://www.autoveteranen.de/flugzeug/piloten.html