UPDATE: Funeral Details Released for Olney Crash Victims

Update, 8:45 p.m.:

County police are advising drivers to avoid the area around St. Francis of Assisi, in Derwood during and around the hours of 10 a.m. to noon on Wednesday, when the church will host funeral services for Haeley McGuire.

A large volume of traffic is expected and parking could overflow the church lot at 6701 Muncaster Mill Road into nearby parking lots and residential streets, police said in a news release.

No road closures are planned at this time. County police will be present to assist with traffic flow.

Original post, 6:40 p.m.:

Magruder High School has posted funeral details for senior Haeley McGuire and Magruder alumni Spencer Datt and John Hoover on the school's Web site.

Services for McGuire will be held on Wednesday at St. Francis of Assisi, at 6701 Muncaster Mill Road, in Derwood, with visitation with the family at 10 a.m. in the church’s vestibule, followed by Mass at 11 a.m. A reception will follow in the parish center.

Services for Spencer Datt will be held on Thursday at Oakdale Emory United Methodist Church, 3425 Emory Church Road, in Olney, with visitation with family at 10 a.m. in the sanctuary and an 11 a.m. service.

Visitation for John Hoover will be held 6:30-8:30 p.m. on Friday at St. Francis of Assisi.

A funeral Mass for Hoover will be held at 10:30 a.m. on Saturday at , 12319 New Hampshire Avenue, in Silver Spring.

Datt, Hoover and McGuire were .