What does the name "Sigel" stand for?

A sigil refers inter alia to:

• (in computer programming), a symbol that must be attached to a variable name in some programming languages.
• a seal (device) or signet ring.
• a symbol used to identify primary sources in bibliographies.

http://en.wikipedia.org/wiki/Sigil

The name Sigel (German: die Sigle | das Sigel, Plural: die Siglen | die Sigel) derives as made-up word from Latin "singulae litterae" (English: "single letters"), a fixed alpha-numerical abbreviation sign for a syllable, a word, or a group of words, as e.g. in stenography. New latin: siglum, Plural: sigla)

In library and information science, a Sigel is the abbreviation sign of a library (library code).

http://de.wikipedia.org/wiki/Sigel

The name Sigel (Siegel) also derives from Latin "sigillum" (English: "seal"), the diminutive of "signum" (English: "sign"). Si(e)gel is thus the cast of a sunk , engraved stamp, used to affix a seal to a document. In Middle High German, "Sigel" (13th century), "Siegel" (15th century), and "Sigille" were used).

http://en.wikipedia.org/wiki/Seal_%28device%29

Sigelverzeichnis | Siglenverzeichnis (list of Sigel)

A "Sigelverzeichnis" or "Siglenverzeichnis" is a list of Sigel (Latin: sigla), containing abbreviations and associated sources of literature in scientific works.

In library and information science, a Sigelverzeichnis is a list of the abbreviation signs of libraries, as compiled by University Libraries or Library Coordination Centers.

http://de.wikipedia.org/wiki/Siglenverzeichnis

Can you find out in the so-called Sigelliste (Sigel list) of the Sigelstelle (Sigel center) of the Staatsbibliothek zu Berlin (StaBi) which German library corresponds to the Sigel <Witz 1> (German for: "Joke")?

 
Sigel as a place name

According to the "Getty Thesaurus of Geographic Names", there exist two places in the U.S.A. called Sigel

http://www.getty.edu/vow/TGNFullDisplay?find=Sigel&place=&nation=&page=1&english=Y&subjectid=-1&checked=2030162&checked=2093073

So how can you remember what Alexander Sigel stands for?

Just think of a knowledge worker and scientist in the knowledge field (knowledge management/organization, library and information science and practice), whose work is, as one says in German "Qualität mit Brief und Siegel" ("quality with a seal" | "seal of quality"), i.e. of high quality and trustable.