Historic American Buildings Survey, Creator, and John Magruder. Dunblane, Westphalia Road, Forestville, Prince George's County, MD. Forestville Maryland Prince George's County, 1933. Documentation Compiled After. Photograph. Retrieved from the Library of Congress, https://www.loc.gov/item/md0522/.
If you are 65 or older, your gross income needs to be $13,950 or more for you to file. If you are a widow/widower with dependent children you would qualify to file taxes if you are younger than 65 with a gross income of $15,700 or more.
For single dependents who are over 65 or blind, you generally must file a federal income tax return if your unearned income was more than $2,400 ($3,850 if 65 or older and blind) or if your earned income was over $7,400 ($8,850 if 65 or older and blind).