Notes. ^(a) Source coordinates are listed in Table 2. The “-l” and “-u” following source names indicate the lower and upper clusters in corresponding clumps. The coordinates of the infrared sources, H II regions, and masers are listed in Table A.1. ^(b) Mainly based on a threshold of MIPS 24 μm flux S_{24 μm} = 15.0 Jy at a distance of 1.7 kpc (Motte et al. 2007), this flux limit can be rescaled to the distance of the sources in this table (see the MIPS 24 μm flux in Zhang et al. 2019a). ^(c)Compact H II region candidate, judged by whether there is a corresponding 1.3 cm continuum at its sensitivity (Zhang et al. 2019a). ^(d) Identified by the 6-GHz methanol multibeam maser catalogs (Green et al. 2010; Breen et al. 2015). ^(e) Associated with outflows G23.44-l; Ren et al. (2011), G23.97S; Cyganowski et al. (2008), G25.38-l; Liu et al. (2011); Zhu et al. (2011), and G25.71; de Villiers et al. (2014). ^(f)Identified by the presence or absence of star formation activity toward the center massive core within each source. References.⁽¹⁾ Wienen et al. (2012); ⁽²⁾ Reid et al. (2009); ⁽³⁾ Brunthaler et al. (2009); ⁽⁴⁾ Anderson & Bania (2009); ⁽⁵⁾ Ai et al. (2013); ⁽⁶⁾ Urquhart et al. (2013); ⁽⁷⁾ Lockman (1989).