Here are the latest Dorchester neighborhood notes:

Visit from Santa

The Mayor’s Enchanted Trolley will tour the neighborhood for the 23rd year at 1 p.m. on Saturday, Dec. 1, starting at Codman Square, and at 7 p.m. on Sunday, Dec. 2 at Adams Corner.

Mayor Marty Walsh and a visitor from the North Pole will bring holiday cheer and light the Christmas tree at each location. Festivities will include carolers, refreshments, prizes and games for the children.

For further information, call 617-635-3911 or visit www.cityofboston.gov/arts.

Kids’ Christmas party

The Polish American Citizens Club will host its annual Kids’ Christmas Party and Potluck from 1 to 4 p.m. on Saturday, Dec. 1 in the upstairs hall at 82 Boston St.

Parents can sign up to bring a dish and should also bring a wrapped gift for Santa to give to their child. Santa will make a special appearance at 2 p.m.

More information is available at www.facebook.com/events/1730807790378023 or www.signupgenius.com/go/70a0948a4aa2da3f58-kids.

National trails celebrated

Author and historian Nathaniel Philbrick will present “From Boston to Yorktown: Tales of the National Trails” from 6 to 7:30 p.m. on Tuesday, Dec. 4 at the John F. Kennedy Library, Columbia Point.

In commemoration of the 50th anniversary of the National Trails Act of 1968, Philbrick, author of “In the Hurricane’s Eye: The Genius of George Washington and the Victory at Yorktown,” and other panelists will explore key events at historic sites featured in National Historic Trails and National Recreation Trails.

The program is free, but reservations are required. Call 617-514-1600 or register online at www.jfklibrary.org.

Rodgers and Hammerstein

“The John F. Kennedy Library, Columbia Point, will present “Something Wonderful: Rodgers and Hammerstein’s Broadway Revolution” from 6 to 7:30 p.m. on Wednesday, Dec. 5.

Todd S. Purdum, staff writer at “The Atlantic,” will discuss his new book, “Something Wonderful: Rodgers and Hammerstein’s Broadway Revolution” with Jared Bowen, host of WGBH’s “Open Studio with Jared Bowen.”

Reservations are required for this free program, online at www.jfklibrary.org or by calling 617-514-1600.

Colonial entrepreneurs

The Adams Street Branch Library, 690 Adams St., will present “She-Merchants of Boston” at 6:30 p.m. on Wednesday, Dec. 5.

The audience will meet two sisters, Elizabeth and Ame Cuming, entrepreneurs of the 1760s who came to Boston from Concord to launch a fashionable shop for women, and learn what happened when the ladies find themselves in the midst of Boston’s politics of rebellion against British authority.

As the nation enters into a decade-long celebration of the 250th anniversary of the coming of the American Revolution to Boston, participants will step into the complicated world of choices faced by the sisters.

This program is part of the National Parks of Boston outreach presentations. To learn more, visit https://www.nps.gov/bost/index.htm or call the library at 617-436-6900.

Secretary of State to visit

John Kerry, former U.S. Senator and 68th Secretary of State, will be the guest speaker at 6:30 p.m. on Thursday, Dec. 6 at the Edward M. Kennedy Institute, 210 Morrissey Blvd.

Kerry will participate in a wide-ranging conversation at the Institute, moderated by David S. Bernstein of Boston Magazine and WGBH News. He will discuss his recent memoir, “Every Day is Extra,” reflect on the current challenges facing the nation and offer insights on the major milestones from his 50 years in public service and what lessons they offer today.

A book signing will follow and copies of the book will be available for purchase from the Institute’s gift shop on the night of the program.

Registration is required for this free program, online at www.emkinstitute.org.

5K run

The fourth annual Half Way to Dot Day 5K Run and Toy Drive will be held at 9 a.m. on Saturday, Dec. 8 at Florian Hall, 55 Hallet St.

All children, ages 12 and under who bring an unwrapped toy, are registered for free. The cost for adults is $20.

All proceeds will help Dorchester families and charities during the holiday season, including a partnership with the Mayor’s Toy Drive. This family-friendly race will end with a breakfast at Florian Hall as a part of the partnership with the Mayor’s Toy Drive.

All registrants will receive a long-sleeve shirt and finishers will receive a handmade, one-of-a-kind holiday ornament. Awards will be given for age groups from youth to senior.

The Dorchester Running Club is the race sponsor.

To sign up or for more information, visit www.dotrunners.org.

Citizenship information

The Fields Corner Branch Library, 1520 Dorchester Ave., will host a free USCIS immigration information session on benefits from 9 a.m. to noon on Saturday, Dec. 8.

A U.S. Citizenship and Immigration officer will give general information on immigration issues such as naturalization and citizenship, eligibility requirements, permanent residency, filing procedures, avoiding scams and finding low cost and safe advice. This is a cooperative effort of USCIS, the Mayor’s Office for Immigration Advancement and Boston Public Library.

Call 617-565-9430 or 617-436-2155 for more information.

Historic home open house

The Dorchester Historical Society will host its holiday party at the historic 1806 William Clapp House, 195 Boston St., from 2 to 4 p.m. on Sunday, Dec. 9.

Refreshments and music in an historic setting decorated for the holidays will be featured. Dorchester-based pianist Bil Mooney-McCoy will play music of the holiday season and lead the gathering in a lively carol sing. The gift shop will offer reproduction Dorchester Pottery fruit plates, Clapp pear jam, potpourri and Dorchester town seal chocolates made by Phillips Candy House.

Admission is by donation of any amount.

Call 617-293-3052 or visit www.dorchesterhistoricalsociety.org for more information.