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Today

Strength training: Mondays at 11:30 a.m.; Wednesdays at 10:30 a.m.; and Fridays at 10 a.m., at the Groton Senior Center, 163 West Main St. Call (978) 448-1170 for information.

Live music: Friday nights from 7 to 11 p.m., bluesman singer/songwriter Skip Jackson hosts an evening of acoustic blues and folk music at the Stagecoach Inn in Groton. In addition to feature performers, Five-Star Friday is also an open mic, so bring your musical talent and sign up at the door or e-mail Skip at glennsd@aol.com.

Saturday

Piano Recital: Brazilian pianist Luiz de Moura Castro in recital at 8 p.m. at The Kalliroscope Gallery, 264 Main Street, Groton, Mass. His program will feature works by Villa Lobos, Liszt and Ginastera. General admission tickets are $25 per person and include a post-concert wine and cheese reception. Call (978) 486-0540 or visit www.indianhillmusic.org

Egg Hunt: An Easter Egg Hunt for children ages 1 to 12 will be held Saturday, April 8, at the Ayer Gun & Sportsmen’s Club on Snake Hill Road. The search takes place from 11 a.m. to 2 p.m.

Mothers of Multiples: Nashoba Valley Mothers of Multiples, a non-profit organization for mothers of twins (or more) will host a spring sale from 10 a.m. to 1:30 p.m. at the Central Congregational Church, 1 Worthen Street, Chelmsford. Admission is $1 and children under 14 are free. For more information call (978) 256-4111 or e-mail nvmom_info@bigfoot.com.

Rail Trail clean-up: 10 a.m. to noon, to spruce up the trail for bicycling season. Start at the north end of the trail at the N.H. border, the south end of the trail in Ayer, or at the Sandhill Road parking lot near the trail’s center. An organizer from Friends of Willard Brook will be available at each point, with bags and instructions. Call Emily Norton at (978) 597-3553 or emily@willardbrook.org for information.

Bake sale: Townsend Golden Age Club will hold a bake sale at the Senior Center, 222 Main Street, from 9 a.m. to 3 p.m. Donations of baked goods would be appreciated. For more information call Avis Roy at (978) 597-6829.

Spring crafts fair: from 9 a.m. to 2 p.m. at the Union Congregational Church in Groton, 218 Main Street on the corner of Willowdale Road.

Sunday

Sunday breakfast: The Ayer Gun & Sportsmen’s Club is offering breakfast from now until Mother’s Day (May 14) on Sundays from 7 to 10 a.m. On the menu is pancakes, French toast, eggs, toast, bacon, sausage, homefries, hash, breakfast sandwiches, coffee and juice. On Mother’s Day, there will be a breakfast buffet.

Monday

Strength training: Mondays at 11:30 a.m.; Wednesdays at 10:30 a.m.; Fridays at 10 a.m., at the Groton Senior Center, 163 West Main St. Call (978) 448-1170 for information.

Weight Watchers: Mondays at 9 a.m. at the Groton Senior Center, 163 West Main St. Call (978) 448-1170 for more information.

Quilting: Mondays at 2 p.m. at the Groton Senior Center, 163 West Main Street. Drop-ins are welcome. Call (978) 448-1170 for more information.

Tots’ Time: Mondays and Tuesdays at 10:30 a.m. at the Harvard Public Library. This is an informal, drop-in story time for children up to age 4 (siblings are welcome). Call the library at (978) 456-4114 for information.

Integral yoga class: Gentle to moderate integral yoga classes are held at Forward Motion Holistic Center, 483A Main St., Groton on Mondays, from 9:30 to 11 a.m., and 6:30 to 8 p.m. To register or for more information call Patsy Brightman, RN, MA, IYT, at (508) 451-3001.

Tuesday

Eyeglass history: Dr. David Fleishman will present “Seeing Clearly: Glasses through the Ages” at 7 p.m. at the Groton Senior Center, Route 225. The program is free and open to the public. For more information call the Groton Historical Society at (978) 448-0092.

Legion meeting: Ayer American Legion Post 139 meets twice monthly (except in July and August) on the second and fourth Tuesdays of the month at 7 p.m. at the Ayer Council on Aging Center at 18 Pond Street rear, lower level. Post information can be found on the Web at www.pdsawyer.com/american_legion.htm or by calling Commander Steve Wentzell at (978) 501- 6916.

Tots’ Time: Mondays and Tuesdays at 10:30 a.m. at the Harvard Public Library. This is an informal, drop-in story time for children up to age 4 (siblings are welcome). Call the library at (978) 456-4114 for information.

Cards: Play Hand and Foot, Tuesdays at 12:45 p.m. at the Groton Senior Center, 163 West Main St. Call (978) 448-1170 for information.

Line dancing: All levels. Virginia Butler and Phyllis Garrepy teach line-dancing on Tuesdays from 10 to 11 a.m. at the Groton Senior Center, 163 West Main St. Call (978) 448-1170 for information.

Bargains in the Belfry thrift shop is open at the Harvard Unitarian Church on Tuesdays from 10 a.m. to 4 p.m. Gently-used women’s and children’s clothing and small houseware items are available.

Painting Club: Meets at 10 a.m. at the Groton Senior Center, 163 West Main St. The club is for intermediate and advanced decorative painters.

Wednesday

McDonald’s night out: Hawthorne Brook Middle School will host a “night out” at McDonald’s on Main Street in Townsend on Wednesday, April 12, from 5 to 7 p.m. Twenty percent of the sales will be donated to the school.

Beginner strength training: Wednesdays from 11 to 11:30 a.m. at the Groton Senior Center, 163 West Main St. Call (978) 448-1170 for information.

Rotary Club: The Groton-Pepperell Rotary Club meets on Wednesdays at 7:30 a.m. at the Groton Country Club. For more information call secretary Martha Campbell at (978) 425-0831.

Senior gathering: The community room of the Dunstable Library is reserved on Wednesdays from 10 a.m. to 3 p.m. for use as a senior center, open to anyone age 60 years or over. A luncheon is served weekly from noon to 1 p.m. for $2, and various activities are planned. Call (978) 649-7830 for information.

Debtors Anonymous meeting: Debtors Anonymous meets on Wednesdays from 7 to 8:30 p.m. at First Parish Unitarian Church, Groton, on the corner of Routes 119 and 40. The meetings are held in the Parish House next to the church. For more information contact Joan at (978) 512-9964 or Andrew at (603) 315-1515.

Yoga class: Gentle integral yoga classes are held at Forward Motion Holistic Center, 483A Main St., Groton on Wednesdays, from 9:30 to 11 a.m., and 6:30 to 8 p.m. To register or for more information, call Patsy Brightman, RN, MA, IYT, at (508) 451-3001.

Thursday

Singles Club: Montachusett Singles meets at 7 p.m. at Our Lady of the Lake Church on Route 13 in Leominster on Thursday, April 13. Meetings are non-denominatioan and all singles are welcome. Club dues are $3 and light refreshments will be served. For information contact Odette at (978) 342-4474 or by e-mail at odette@northeastcontrol.com.

Spanish Club: The Spanish Club for adults meets at the Lawrence Library in Pepperell on Thursdays at 7 p.m., for conversation in a friendly atmosphere. Call (978) 433-0330 for information.

Whist: Whist is played on Thursdays at 12:45 p.m. at the Groton Senior Center, 163 West Main St. Call (978) 448-1170 for information.

Yoga: Thursdays from 10 to 11 a.m. at the Groton Senior Center, 163 West Main St. Yoga is supported by the Friends of Groton Elders and costs $2 per session. Call (978) 448-1170 for information.

Merrimack Valley Chorus: Learn to sing a cappella harmony with the Merrimack Valley Chorus. Visit any rehearsal to participate or listen. Rehearsals are held every Thursday night at the Wilmington Arts Council Building, 219 Middlesex Ave. (Route 62), Wilmington, Mass. Call Marie at (603) 882-8400 or Kate at (978) 692-1843 or visit www.merrimackvalleychorus for more information.

ARC meetings: A support group for Groton, Townsend, and Pepperell parents of children with disabilities meets every first and third Thursday, at 10 a.m. at the Lawrence Library in Pepperell. Free baby-sitting is provided and coffee and pastries are served.

Friday

Strength training: Mondays at 11:30 a.m.; Wednesdays at 10:30 a.m.; Fridays at 10 a.m., at the Groton Senior Center, 163 West Main St. Call (978) 448-1170 for information.