Who is Marguerite Oswald from Case Closed: Lee Harvey Oswald and the Assassination of JFK and what is their importance?

Marguerite Oswald is the mother of Lee Harvey Oswald, brother Robert, and half-brother, John Pic. Her husband died two months before Lee's birth. She placed her three sons in the Bethlehem Children's Home until early 1944 when she took them out and moved to Dallas. She married Edwin Ekdahl in May 1945. They were divorced in June 1948. She was domineering and controlling and the two older boys joined the military as soon as they could to get away from her. When living in the Bronx, rather than seeing Lee placed in an institution, she fled with him to Texas.