Oliver Wendell Holmes, Sr. (the poet), married Amelia Lee Jackson. They had three children as follows: 1. Oliver Wendell Holmes, Jr. (the Supreme Court Justice)...he married Fannie Bowditch Dixwell...
There are three norths: true north, magnetic north and grid north.
According to www.ordnancesurvey.co.uk, the three norths are defined as follows:
Grid North: the direction of a grid line which is...