Found her on the 1850 Bushwick, Kings, New York census (img 41) as
Louisa Finger age 23.
Found her on the 1855 New York City, New York state census (Ward 22 E.D. 1 img 31) as
Louisa Finger age 28.
A TERRIBLE WOMAN. - Yesterday evening a woman named Louisa Finger, wife of George Finger, keeper of a lager bier saloon, corner of 9th avenue and 44th street, attempted to burn herself and child, and did actually open the stove door and set her clothes on fire. Fortunately an officer was near by, and succeeded in saving her life, add that of her child, whom she had in her arms, by tearing her clothes from her person. Mr. Finger was from home at the time. It appears this woman has attempted self-destruction several times before. - Brooklyn Daily Eagle Dec 24, 1859
Found her on the 1900 Babylon, Suffolk, New York census (dist 735 img 16) as
Louisa Finger age 71. Came to the U.S. in 1845 and is naturalized. Has given birth to 7 children, 4 are living.