Who is this person?

[Eva Elisabeth]

Compars possibly performed another time before the Lincolns (see my first link above):
"On January 27th, 1862, Compars, who was also known as Carl appeared with his younger brother Alexander before President Abraham Lincoln, Mrs. Lincoln and his cabinet at The White House in Washington D.C.. One of the feature effects he performed was the Inexhaustible Bottle. This was an effect where any drink called for would come out of the bottle. Mrs. Lincoln requested tea, which Compars gladly poured from the bottle. Members of the audience asked for other drinks and Compars poured each drink called for from the bottle. This was a popular effect of the time and many magicians used it successfully."

No source for this, however, and a Lincoln Log entty on that day reads:
" Mrs. Lincoln is ill today. Boston Advertiser, 28 February 1862."
Maybe it was chamomile tea she requested...

Here's a newspaper obituary:
http://anno.onb.ac.at/cgi-content/anno?a...10&seite=1