This Supplement is filed pursuant to Rule 497(d) with regard to
Government Securities Income Fund U.S. Treasury Strategy Trust - 1,
Defined Asset Funds.
The text of the supplement to the Prospectus dated August 5, 1994
is as follows:
Supplement dated May 5, 1995
to Prospectus dated August 5, 1994 of
Government Securities Income Fund
U.S. Treasury Strategy Trust - 1
Defined Asset Funds
-------------------------------------
The Treasury Notes in Portfolio No. 2, face amount $14,930,000 at
3.875%, matured on April 30, 1995. Pursuant to the Fund's laddering
strategy, after deduction of the deferred sales charge, $14,651,252 of the
proceeds was used to purchase $14,665,000 face amount of Treasury Notes,
6.875% due 3/31/00. As a result, as of May 1, 1995, the estimated yield to
next Extension date (5/15/96) was 6.36% and the estimated monthly income
distributions are $4.57 per 1,000 Units.
