It seems that the wife, Maria Johanna Disandt (born Zinn) of Johan Daniel Disandt is commonly mistakenly written as Martha Johanna Disandt (born Zinn). And Martha Disandt (born Geere), the wife of Johannes Christian Disandt, is often mistaken for Maria Geere (Disandt).
Based on the connections, and dates associated with Martha Geere it can only be concluded that the name mix-up has occurred.
