Department officials, however, have hopes that many more trees with unusual backgrounds will become known once the public is made aware of the search.

The plant is of special interest to collectors and historians for its unusual background.

General Campbell's unusual background gives him a good chance to succeed.

However, some highly successful politicians come from unusual backgrounds.

Pierie had been a pressed man, an unusual background for an officer.

Those who qualify in each group are then examined for other factors, like special talents and unusual backgrounds.

Tony has an unusual background, entering academic research only in 2004.

Miss Hempel has an unusual background for a fashion designer.

It is Robiskie's unusual background that has helped shape his present standing.

Against this extremely unusual background, on the Sunday before the week of the decision, the meeting that previously only you have mentioned took place.