Members of the D.C. Board of Elections and Ethics met privately yesterday with City Council members Marion Barry, the Democratic nominee for mayor, apparently to discuss questions about some of Barry's personal financial disclosure reports.

Neither Barry, members of his staff nor the elections board would discuss the meeting. However, several knowledgeable sources said subjects discussed included Barry's former coownership of a house with his exwife, once reported on a financial disclosure form and incomplete reporting of the corporate name of his employer. The house is at 643 A. St. SE. It was purchased in 1968 by Mary Treadwell, who married Barry in 1972. She sold the house in 1975, according to land records. In 1974, when Barry filed the required financial report as a candidate for the City Council, he reported that he owned 50 percent of the property and was liable for half of a $52,000 note on the house.

The next year, Barry reported nothing about the house, but he did report owning 50 percent of another residence at 411 Seventh St. NE.

Two weeks ago, Barry told The Post in a telephone interview that he and Treadwell had lived in the A Street house for some time and later began renting the Seventh Street home while the A Street house was renovated. They subsequently purchased the Seventh Street home, he said in January, 1975, according to land records.

Eight months later, the A Street house was sold for $77,000. Barry said all of the money from the sale of that house went to his wife. Land records indicate that the $52,000 turst on the home, of which Barry was a cosigner, was paid off Oct 3, 1975.

The Barrys, were legally separated in May, 1976. Fifteen months later, they were divorced.

As part of the divorce agreement, sources said. Treadwell agreed to pay Barry a $3,00 note in return for his initial investment in the Seventh Street house. That note was listed as as asset in his 1978 financial disclosure form.

The other matter discussed at the meeting, the sources said, was Barry's statement in one report that his salary in 1973 had been paid by "Pride Inc." the self-help organization of which he was codirector until he was elected to the City Council in 1974.

At that time, there was no corporate entity knows as "Pride Inc." in the complex of several organizations spawned by the self-help group.

Barry said in the same interview two weeks ago that he was actually paid by "Youth Pride Inc.," the parent entity of several corporations bearing the Pride name. A that time, he said, he used the terms Pride Inc. and Youth Pride Inc. interchangeably.

Yesterday's meeting, which sources said was called by the board, is believed to stem from a routine audit, begun by the board several months ago, of the financial reports from Barry's 1976 city council reelection campaign.

At the time of the audit, elections investigators were confused by two separate bank accounts opened by the Barry campaign organization. Barry said then that the two accounts resulted from a "bookkeeping error."

Some staff members of the election board suspected that Barry may have used the two accounts to disguise questionable use of money. The elections board never has disclosed any fadings.

Elections officials, who appear now to be conducting an exhaustive examination of Barry's finances, have also shown interest in the positions and responsibilities Barry has held in any of the half-dozen. Pride-affiliated corporations to see if any of those roles constitute a conflict of interest, according to sources.

In August, when news of the audit of the 1976 records was disclosed, Barry called the affair "an effort by someone around [the District Building] to make a mountain out of a molehill."