In this Jan. 8, 2021, file photo President-elect Joe Biden's nominee for Secretary of Labor, Boston Mayor Marty Walsh speaks during an event at The Queen theater in Wilmington, Del. Credit: Susan Walsh / AP

BOSTON — Another Boston city councilor has formally declared her candidacy for mayor.

Councilor At-Large Annissa Essaibi George, 47, will announce her campaign on Thursday outside East Boston High School alongside a small group of family and friends, she said in a statement.

She becomes the third member of the board to declare, joining Michelle Wu and Andrea Campbell in the race to replace Mayor Marty Walsh.

Essaibi George, a former public school teacher, is the first to declare since President Joe Biden nominated Walsh to be his labor secretary.

Essaibi-George told The Boston Globe her experiences as a mother, educator, small business owner and Dorchester native have prepared her to bring the city through the COVID-19 pandemic, into a sustained recovery, and an “eventual rebirth.”

She was first elected to the council in 2015.

Essaibi-George is the daughter of immigrants — a father from Tunisia and a mother born in Germany in a settlement for people displaced from Poland.

She was seen as an ally of Walsh on the council.

The election will be held this year.