SNGF - Paternal Maternal Line

This week's challenge is one I did before (my mtDNA haplogroup is K1a4a1), so I'm doing my father's maternal lines instead.  This will, unfortunately, be short and sweet:

1. My Dad
2. My Paternal Grandmother
3. (Maria) Nicoletta UNKNOWN (likely either Riccia or Daccia), born 25 February 1891/1892 in Peschici, Foggia, Italy; died 10 February 1987 in Warren, Trumbull, Ohio

Their mtDNA haplogroup is N1a, a rare one - especially in Europe.  The only place it shows up in any noticeable percentages today is in Saudi Arabia and Yemen.

For a bonus here are my grandfather's maternal lines as well:

1. My Maternal Grandfather
2. Gladys Viola Healey (1898-1998)
3. Katherine Nielsen (1875-1918)
4. Engeline Christine Petersen (1855-1932)

Engeline was Danish, from the German state of Schleswig-Holstein.  I do not know what their mtDNA haplogroup is, though I have several testing options.

1. My Paternal Grandfather
2. Daisy May/Mae/Marie Croad (1896-1990)
3. Mary Stokes (1867-1923)
4. Charlotte Shepstone/Shipton (1827-1896)
5. Sarah Shoe (1806-1832)
6. Mary UNKNOWN (ca. 1776-aft. 1841)

Mary lived in Somerset, England and at the time of the 1841 England Census, she was living in the village of Churchill (where her granddaughter Charlotte was born).  There are a few testing options that I know of, but I have not been in contact with any of them.