Lehman student Linh Tu has her banner straightened by Lehman Catholic High School Principal Denise Stauffer.

Lehman Catholic High School students stop for a selfie during their graduation ceremony Sunday, May 29.

Salutatorian Nicholas Mathew Neumeier speaks during the Lehman Catholic High School graduation ceremony Sunday, May 29.

Adriana Sehlhorst, right, receives her diploma from Lehman Catholic High School principal Denise Stauffer at the Lehman graduation ceremony Sunday, May 29.

Valedictorian Caroline Elaine Heitmeyer speaks during the Lehman Catholic High School graduation ceremony Sunday, May 29.

Lehman student Linh Tu has her banner straightened by Lehman Catholic High School Principal Denise Stauffer.

http://aimmedianetwork.com/wp-content/uploads/sites/47/2016/05/web1_SDN052916LehGrad5.jpgLehman student Linh Tu has her banner straightened by Lehman Catholic High School Principal Denise Stauffer. Steve Egbert | Sidney Daily News

Lehman Catholic High School students stop for a selfie during their graduation ceremony Sunday, May 29.

http://aimmedianetwork.com/wp-content/uploads/sites/47/2016/05/web1_SDN052916LehGrad1.jpgLehman Catholic High School students stop for a selfie during their graduation ceremony Sunday, May 29. Steve Egbert | Sidney Daily News

Salutatorian Nicholas Mathew Neumeier speaks during the Lehman Catholic High School graduation ceremony Sunday, May 29.

http://aimmedianetwork.com/wp-content/uploads/sites/47/2016/05/web1_SDN052916LehGrad4.jpgSalutatorian Nicholas Mathew Neumeier speaks during the Lehman Catholic High School graduation ceremony Sunday, May 29. Steve Egbert | Sidney Daily News

Adriana Sehlhorst, right, receives her diploma from Lehman Catholic High School principal Denise Stauffer at the Lehman graduation ceremony Sunday, May 29.

http://aimmedianetwork.com/wp-content/uploads/sites/47/2016/05/web1_SDN052916LehGrad3.jpgAdriana Sehlhorst, right, receives her diploma from Lehman Catholic High School principal Denise Stauffer at the Lehman graduation ceremony Sunday, May 29. Steve Egbert | Sidney Daily News

Valedictorian Caroline Elaine Heitmeyer speaks during the Lehman Catholic High School graduation ceremony Sunday, May 29.

http://aimmedianetwork.com/wp-content/uploads/sites/47/2016/05/web1_SDN052916LehGrad2.jpgValedictorian Caroline Elaine Heitmeyer speaks during the Lehman Catholic High School graduation ceremony Sunday, May 29. Steve Egbert | Sidney Daily News