There are two distinctly different words :
GLACIER (nature) - a large frozen mass, often a moving "river" of compressed precipitation
GLAZIER (person) - one who cuts and/or installs glass, as in windows
Marshall Glasier has written: 'Recent works by Marshall Glasier'
Hugh Glasier died in 1610.
Katharine Glasier was born in 1867.
Katharine Glasier died in 1950.
A glasier was and still is someone who makes items from glass, particularly windows. A glasier is different from a glacier.
John Glasier was born on 1809-09-03.
John Glasier died on 1894-07-07.
John Bruce Glasier died in 1920.
John Bruce Glasier was born in 1859.
Phillip Glasier died on September 11, 2000, in Gloucestershire, England, UK.
Alfred A. Glasier has written: 'The Irving Club among the White Hills'
Phillip Glasier was born on December 22, 1915, in Southfields, London, England, UK.