Robert Calvert
Robert Newton Calvert( 9 March 1945 – 14 August 1988) was an English writer, poet, and musician.
He is principally known for his role as lyricist and member of the space rock band Hawkwind.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.
Paul Newton (politician)
Paul Robert Newton( born June 2, 1960) is a Republican member of the North Carolina State Senate, representing the 36th district.
Mary Ingalls
Mary Amelia Ingalls( January 10, 1865 – October 20, 1928) was born near the town of Pepin, Wisconsin.
She was the first child of Caroline and Charles Ingalls and older sister of author Laura Ingalls Wilder, known for her" Little House" book series.
Robert McGowan Coventry
Robert McGowan Coventry or Robert McGown Coventry( 1855–1914) was a Scottish painter born in Glasgow.
Robert C. Newton
Robert C. Newton( June 2, 1840 – June 7, 1877) was a noted lawyer and Confederate Colonel in Arkansas during the American Civil War.
He is most remembered for his involvement in the Brooks- Baxter War.
Robert C. Newton Camp# 197 of Little Rock was named for him and was the oldest continually run camp of the Arkansas Division, Sons of Confederate Veterans, as well as the oldest continually active camp west of the Mississippi River.
Robert Newton Lowery
Robert Newton Lowery( July 13, 1882 — April 27, 1962) was a politician in Manitoba, Canada.
He served in the Legislative Assembly of Manitoba from 1915 to 1920 as a member of the Liberal Party.
Samuel Newton (sport shooter)
Samuel Robert Newton (November 23, 1881 – October 11, 1944) was a Canadian sport shooter, who competed in the 1924 Summer Olympics.
In 1924 he won a silver medal in team trap event.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Robert Newton Flew
Robert Newton Flew( 1886–1962) was an English Methodist minister and theologian, and an advocate of ecumenism among the Christian churches.

Question: Who is younger, Mary Ingalls or Robert Newton Lowery?
Answer: Robert Newton Lowery