45th Street

See also 44th Street, which was named 45th Street for less than a month in 1868.

45th Street
Neighborhood	Central Lawrenceville
Origin of name	Sequential numbering up the Allegheny River
➤ St. Mary Street (until 1868)
Origin of name	St. Mary's Church and St. Mary Cemetery
➤ Harris Street (until 1868)
Portion	North of Butler Street
➤ 46th Street (1868)
Origin of name	Sequential numbering up the Allegheny River, including Fisk Street

The original name of 45th Street was St. Mary Street or St. Mary's Street, after St. Mary's Church and St. Mary Cemetery on the hill near Penn Avenue. St. Mary's Church was founded in 1853 and dedicated in January 1854. The present building was dedicated on April 19, 1874. See also 46th Street, which was originally named Church Street for the same church.

The part of this street north of Butler Street was laid out as Harris Street in 1859 in a plan of lots for R. L. Ewalt.

In 1868, Pittsburgh's modern sequence of numbered streets was created by renaming all the streets perpendicular to the Allegheny River; St. Mary Street (and implicitly Harris Street too) became 45th Street. The original renaming ordinance included Fisk Street in the list of streets to be renamed, which made "St. Mary avenue" 46th, but this was apparently a mistake. Less than a month later, a supplementary ordinance repealed all of the name changes east of 40th Street and redid the numbering with Fisk Street omitted, which put "St. Mary avenue" at 45th.

See also

• Harris Avenue