Eaton Vance Senior Income Trust Declares Monthly Distribution

BOSTON, Nov. 2 /PRNewswire-FirstCall/ -- Eaton Vance Senior Income Trust
(NYSE: EVF), a closed-end management investment company, today declared a
monthly distribution of $0.028 per common share. As portfolio and market
conditions change, the rate of future distributions may change. The
distribution is expected to be paid on November 19, 2009, to shareholders of
record on November 12, 2009. The ex-dividend date is November 9, 2009.

At this time the Fund believes that a portion of the November distribution may
be comprised of amounts from sources other than net investment income. If
that is the case, you will be notified in writing. Further information will
be available prior to the payment date at http://individuals.eatonvance.com.
The final determination of tax characteristics of the Fund's distributions
will occur after the end of the year, at which time it will be reported to the
shareholders.

The Fund is managed by Eaton Vance Management, a subsidiary of Eaton Vance
Corp. (NYSE: EV), based in Boston, one of the oldest investment management
firms in the United States, with a history dating back to 1924. Eaton Vance
and its affiliates managed $157.0 billion in assets as of September 30, 2009,
offering individuals and institutions a broad array of investment products and
wealth management solutions. The Company's long record of providing exemplary
service and attractive returns through a variety of market conditions has made
Eaton Vance the investment manager of choice for many of today's most
discerning investors. For more information about Eaton Vance, visit
www.eatonvance.com.

SOURCE Eaton Vance Management

Eaton Vance Management Investors, +1-800-262-1122