It would be odd if they were not the same person. The Homan surname is sometimes written as Houman on some baptisms and even her death note, but both are definitely used interchangeably. There are also other platforms like FamilySearch where her alternative surname is listed as Hauman - though I'm not sure about the sources for this. I really think the Elisabeth on her death notice might be wrong - remember her real mother would have passed long before by this time. To add some more evidence, also look at the baptism of Hendrik Willem Ras, son of Marthinus Ras and Christina Adriana Homan. It shows Maria Weijers' niece and her husband singing as witnesses: https://www.familysearch.org/ark:/61903/3:1:S3HY-DZN4-WLL?i=70&... .