According to her tombstone she was born about 1839 but there is a record in Vermont birth records of a Maria Louisa Molt who was born in 1836 at Burlington, Chittenden, Vermont to a Mr. Molt with no name of the mother listed. I tend to think the tombstone year of birth is incorrect and that the Vermont birth record is probably more reliable. I found this information online on 12 May 2012.
Her father was married at least twice and was of German extraction. Her tombstone inscription says that she was 47 at time of death.
She was the second wife of Charles Coffey Alger (born 4 July 1809 and died 13 July 1874) and she was about 30 years younger than he was. They first had a daughter Marie Alger who was baptized on January 15, 1869 at All Soul's, St. Marylebone, London, England. There are two baptismal entries on familysearch.org. One gives the date of birth as January 5, 1868 and the other as January 5, 1869. It seems to me that the 1869 date for birth is correct since there is a birth record for a Marie Alger for the first quarter of 1869. There is also a death record for Marie Alger during the first quarter of 1869 at Marylebone, London, England. Thus it seems that the child lived a maximum of less than three months.
The second daughter was Lucile Alger who was born October 10, 1870 at Norwich, New London County, Connecticut and died unmarried December 24, 1936 at her estate at 100 Beach Road in Saddle Rock, Great Neck, Long Island, New York. Lucile's birth certificate in Norwich, New London County, Connecticut says that she was the second child born to the mother (who is only listed with her maiden name of Molt with the father of the child being listed as C. C. Alger). Marie died in Hanover, Germany on November 3, 1886 of a stoppage of the heart and was buried 20 days later at the Yantic Cemetery at, or near, Norwich, New London County, Connecticut, as the widow of C. C. Alger.
C. C. Alger (Charles Coffey Alger) had managed to secure a divorce from his first wife, Sarah Palmer, in the first part of 1868. Sarah Palmer Alger outlived both her husband and his second wife and Sarah died at Hudson, New York in February of 1897. Sarah Palmer (daughter of William Palmer) and C. C. Alger had a daughter Grace Alger who died unmarried in March of 1899 and a son Charles Alger (who was the widower of Helena Willett Freeland) who died January 2, 1897. Charles Alger left three daughters and a son. The daughters were Grace Coffey Alger, the wife of Louis William Groat, Helena Willett Alger, the wife of Frank Farrand, and Miss Sarah Palmer Alger who died unmarried. The son was Charles Francis Alger who left a son (an only child) Carl Wirth Alger.