Eaves turned up out of the blue to watch the Shakers recent home match against Kidderminster Harriers.
And the failed businessman had a prime seat for the 4-0 victory - just one row behind current Board members.
However, he didn't gain admittance to the Boardroom where once he was the major figure alongside chairman Terry Robinson.
And Eaves, who lives in London, isn't expected to attend other matches.
There's no suggestion either he's trying to take a more active role in the League Two side.
Indeed, Eaves is believed to have suffered a brain haemorrhage in recent years and one Gigg Lane insider said: "He didn't look very well. He looked extremely frail."
Tottington-born Eaves, 61, joined the Board in 1986 and is believed to have pumped '5m into the club during his tenure. He owned 90 percent of the shares and Bury gained a succession of promotions to reach the old first division.
But in December 1998, Eaves quit, claiming he'd been driven out by abuse from the fans.
The following year it was revealed the former finance director for Phillips & Drew lost '20m in stock market gambles.
In 2000, the club went up for sale and suddenly the Shakers were plunged into financial hardship, and coupled with the collapse of ITV Digital, almost went out of existence.
Indeed, Bury spent six months in administration during 2002 and are still operating on a shoestring budget.
Director Roger Barlow said: "He didn't have any conversations with the Board and it was a none event as far as we're concerned.
"We certainly didn't know in advance he was coming to the game."
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