3:58 p.m., May 19, 2006--Janice H. Carlson, 63, of Hockessin, died at home on April 19 of Lou Gehrig's disease (ALS).

Born in Worcester, Mass., Ms. Carlson worked as a supplemental faculty member in the art conservation department at the University of Delaware.

Ms. Carlson attended the College of Wooster, in Wooster, Ohio, and graduated in 1964 with a bachelor's degree in chemistry. Following graduate school at the University of Michigan, where she received an master's degree in analytical chemistry in 1966, she worked briefly for the Upjohn Co. in Kalamazoo, Mich.

She married Norman A. Carlson in 1967, and they moved together as newlyweds to Wilmington, where both worked for the DuPont Co. Ms. Carlson retired from the working world to have their two children, Andrew and Neil.

In 1974, she joined the staff of Winterthur Museum as museum chemist. Ms. Carlson worked in the Winterthur's scientific research and analysis laboratory for nearly 30 years, retiring in 2003 as senior scientist and head of the laboratory. During her tenure at Winterthur, she also served as adjunct faculty for the Winterthur/University of Delaware Program In Art Conservation, authored or co-authored more than 30 technical publications, lectured nationally and internationally, and organized several international short courses. She was a member of the American Chemical Society, the American Institute for Art Conservation, and the Infrared and Raman User's Group.

Ms. Carlson was an active member of Red Clay Creek Presbyterian Church. She sang in the Chancel Choir for more than 38 years, was in the Bell Choir for many years, assisted with the Children's Choir, taught Sunday school, served on the Personnel and Worship Committees and was a Deacon. In the community, she was a longtime member of the University Women's Literary Society

Survivors include her husband, Norman; sons Andrew M. Carlson and Neil A. Carlson; mother, Eleanor M. Hickey; sister, Marcia H. Hastings; brother, Warren M. Hickey; and many cousins, an uncle and aunt.

A memorial service was held on April 23 at Red Clay Creek Presbyterian Church.